21271488

素因数分解:

$2^6\times 3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:72

約数の個数: 224

約数和(自身を含む): 73152000

約数和(自身を除く): 51880512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 17, 19, 21, 24, 28, 32, 34, 38, 42, 48, 49, 51, 56, 57, 64, 68, 76, 84, 96, 98, 102, 112, 114, 119, 133, 136, 147, 152, 168, 192, 196, 204, 224, 228, 238, 266, 272, 294, 304, 323, 336, 343, 357, 392, 399, 408, 448, 456, 476, 532, 544, 588, 608, 646, 672, 686, 714, 784, 798, 816, 833, 912, 931, 952, 969, 1029, 1064, 1088, 1176, 1216, 1292, 1344, 1372, 1428, 1568, 1596, 1632, 1666, 1824, 1862, 1904, 1938, 2058, 2128, 2261, 2352, 2499, 2584, 2744, 2793, 2856, 3136, 3192, 3264, 3332, 3648, 3724, 3808, 3876, 4116, 4256, 4522, 4704, 4998, 5168, 5488, 5586, 5712, 5831, 6384, 6517, 6664, 6783, 7448, 7616, 7752, 8232, 8512, 9044, 9408, 9996, 10336, 10976, 11172, 11424, 11662, 12768, 13034, 13328, 13566, 14896, 15504, 15827, 16464, 17493, 18088, 19551, 19992, 20672, 21952, 22344, 22848, 23324, 25536, 26068, 26656, 27132, 29792, 31008, 31654, 32928, 34986, 36176, 39102, 39984, 44688, 46648, 47481, 52136, 53312, 54264, 59584, 62016, 63308, 65856, 69972, 72352, 78204, 79968, 89376, 93296, 94962, 104272, 108528, 110789, 126616, 139944, 144704, 156408, 159936, 178752, 186592, 189924, 208544, 217056, 221578, 253232, 279888, 312816, 332367, 373184, 379848, 417088, 434112, 443156, 506464, 559776, 625632, 664734, 759696, 886312, 1012928, 1119552, 1251264, 1329468, 1519392, 1772624, 2658936, 3038784, 3545248, 5317872, 7090496, 10635744, 21271488]

約数ペア:

[(1, 21271488), (2, 10635744), (3, 7090496), (4, 5317872), (6, 3545248), (7, 3038784), (8, 2658936), (12, 1772624), (14, 1519392), (16, 1329468), (17, 1251264), (19, 1119552), (21, 1012928), (24, 886312), (28, 759696), (32, 664734), (34, 625632), (38, 559776), (42, 506464), (48, 443156), (49, 434112), (51, 417088), (56, 379848), (57, 373184), (64, 332367), (68, 312816), (76, 279888), (84, 253232), (96, 221578), (98, 217056), (102, 208544), (112, 189924), (114, 186592), (119, 178752), (133, 159936), (136, 156408), (147, 144704), (152, 139944), (168, 126616), (192, 110789), (196, 108528), (204, 104272), (224, 94962), (228, 93296), (238, 89376), (266, 79968), (272, 78204), (294, 72352), (304, 69972), (323, 65856), (336, 63308), (343, 62016), (357, 59584), (392, 54264), (399, 53312), (408, 52136), (448, 47481), (456, 46648), (476, 44688), (532, 39984), (544, 39102), (588, 36176), (608, 34986), (646, 32928), (672, 31654), (686, 31008), (714, 29792), (784, 27132), (798, 26656), (816, 26068), (833, 25536), (912, 23324), (931, 22848), (952, 22344), (969, 21952), (1029, 20672), (1064, 19992), (1088, 19551), (1176, 18088), (1216, 17493), (1292, 16464), (1344, 15827), (1372, 15504), (1428, 14896), (1568, 13566), (1596, 13328), (1632, 13034), (1666, 12768), (1824, 11662), (1862, 11424), (1904, 11172), (1938, 10976), (2058, 10336), (2128, 9996), (2261, 9408), (2352, 9044), (2499, 8512), (2584, 8232), (2744, 7752), (2793, 7616), (2856, 7448), (3136, 6783), (3192, 6664), (3264, 6517), (3332, 6384), (3648, 5831), (3724, 5712), (3808, 5586), (3876, 5488), (4116, 5168), (4256, 4998), (4522, 4704)]