21277872

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:152

約数の個数: 240

約数和(自身を含む): 78923520

約数和(自身を除く): 57645648

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 19, 21, 22, 24, 28, 33, 36, 38, 42, 44, 48, 56, 57, 63, 66, 72, 76, 77, 84, 88, 99, 101, 112, 114, 126, 132, 133, 144, 152, 154, 168, 171, 176, 198, 202, 209, 228, 231, 252, 264, 266, 303, 304, 308, 336, 342, 396, 399, 404, 418, 456, 462, 504, 528, 532, 606, 616, 627, 684, 693, 707, 792, 798, 808, 836, 909, 912, 924, 1008, 1064, 1111, 1197, 1212, 1232, 1254, 1368, 1386, 1414, 1463, 1584, 1596, 1616, 1672, 1818, 1848, 1881, 1919, 2121, 2128, 2222, 2394, 2424, 2508, 2736, 2772, 2828, 2926, 3192, 3333, 3344, 3636, 3696, 3762, 3838, 4242, 4389, 4444, 4788, 4848, 5016, 5544, 5656, 5757, 5852, 6363, 6384, 6666, 7272, 7524, 7676, 7777, 8484, 8778, 8888, 9576, 9999, 10032, 11088, 11312, 11514, 11704, 12726, 13167, 13332, 13433, 14544, 15048, 15352, 15554, 16968, 17271, 17556, 17776, 19152, 19998, 21109, 23028, 23331, 23408, 25452, 26334, 26664, 26866, 30096, 30704, 31108, 33936, 34542, 35112, 39996, 40299, 42218, 46056, 46662, 50904, 52668, 53328, 53732, 62216, 63327, 69084, 69993, 70224, 79992, 80598, 84436, 92112, 93324, 101808, 105336, 107464, 120897, 124432, 126654, 138168, 139986, 147763, 159984, 161196, 168872, 186648, 189981, 210672, 214928, 241794, 253308, 276336, 279972, 295526, 322392, 337744, 373296, 379962, 443289, 483588, 506616, 559944, 591052, 644784, 759924, 886578, 967176, 1013232, 1119888, 1182104, 1329867, 1519848, 1773156, 1934352, 2364208, 2659734, 3039696, 3546312, 5319468, 7092624, 10638936, 21277872]

約数ペア:

[(1, 21277872), (2, 10638936), (3, 7092624), (4, 5319468), (6, 3546312), (7, 3039696), (8, 2659734), (9, 2364208), (11, 1934352), (12, 1773156), (14, 1519848), (16, 1329867), (18, 1182104), (19, 1119888), (21, 1013232), (22, 967176), (24, 886578), (28, 759924), (33, 644784), (36, 591052), (38, 559944), (42, 506616), (44, 483588), (48, 443289), (56, 379962), (57, 373296), (63, 337744), (66, 322392), (72, 295526), (76, 279972), (77, 276336), (84, 253308), (88, 241794), (99, 214928), (101, 210672), (112, 189981), (114, 186648), (126, 168872), (132, 161196), (133, 159984), (144, 147763), (152, 139986), (154, 138168), (168, 126654), (171, 124432), (176, 120897), (198, 107464), (202, 105336), (209, 101808), (228, 93324), (231, 92112), (252, 84436), (264, 80598), (266, 79992), (303, 70224), (304, 69993), (308, 69084), (336, 63327), (342, 62216), (396, 53732), (399, 53328), (404, 52668), (418, 50904), (456, 46662), (462, 46056), (504, 42218), (528, 40299), (532, 39996), (606, 35112), (616, 34542), (627, 33936), (684, 31108), (693, 30704), (707, 30096), (792, 26866), (798, 26664), (808, 26334), (836, 25452), (909, 23408), (912, 23331), (924, 23028), (1008, 21109), (1064, 19998), (1111, 19152), (1197, 17776), (1212, 17556), (1232, 17271), (1254, 16968), (1368, 15554), (1386, 15352), (1414, 15048), (1463, 14544), (1584, 13433), (1596, 13332), (1616, 13167), (1672, 12726), (1818, 11704), (1848, 11514), (1881, 11312), (1919, 11088), (2121, 10032), (2128, 9999), (2222, 9576), (2394, 8888), (2424, 8778), (2508, 8484), (2736, 7777), (2772, 7676), (2828, 7524), (2926, 7272), (3192, 6666), (3333, 6384), (3344, 6363), (3636, 5852), (3696, 5757), (3762, 5656), (3838, 5544), (4242, 5016), (4389, 4848), (4444, 4788)]