21000565432

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{373}}^1\times {\mathrm{1187}}^1$

素因数の和:1602

約数の個数: 144

約数和(自身を含む): 50524939080

約数和(自身を除く): 29524373648

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 121, 154, 196, 242, 308, 373, 392, 484, 539, 616, 746, 847, 968, 1078, 1187, 1492, 1694, 2156, 2374, 2611, 2984, 3388, 4103, 4312, 4748, 5222, 5929, 6776, 8206, 8309, 9496, 10444, 11858, 13057, 16412, 16618, 18277, 20888, 23716, 26114, 28721, 32824, 33236, 36554, 45133, 47432, 52228, 57442, 58163, 66472, 73108, 90266, 91399, 104456, 114884, 116326, 143627, 146216, 180532, 182798, 201047, 229768, 232652, 287254, 315931, 361064, 365596, 402094, 442751, 465304, 574508, 631862, 639793, 731192, 804188, 885502, 1005389, 1149016, 1263724, 1279586, 1608376, 1771004, 2010778, 2211517, 2527448, 2559172, 3099257, 3542008, 4021556, 4423034, 4870261, 5118344, 6198514, 7037723, 8043112, 8846068, 9740522, 12397028, 14075446, 17692136, 19481044, 21694799, 24794056, 28150892, 34091827, 38962088, 43389598, 53572871, 56301784, 68183654, 86779196, 107145742, 136367308, 173558392, 214291484, 238642789, 272734616, 375010097, 428582968, 477285578, 750020194, 954571156, 1500040388, 1909142312, 2625070679, 3000080776, 5250141358, 10500282716, 21000565432]

約数ペア:

[(1, 21000565432), (2, 10500282716), (4, 5250141358), (7, 3000080776), (8, 2625070679), (11, 1909142312), (14, 1500040388), (22, 954571156), (28, 750020194), (44, 477285578), (49, 428582968), (56, 375010097), (77, 272734616), (88, 238642789), (98, 214291484), (121, 173558392), (154, 136367308), (196, 107145742), (242, 86779196), (308, 68183654), (373, 56301784), (392, 53572871), (484, 43389598), (539, 38962088), (616, 34091827), (746, 28150892), (847, 24794056), (968, 21694799), (1078, 19481044), (1187, 17692136), (1492, 14075446), (1694, 12397028), (2156, 9740522), (2374, 8846068), (2611, 8043112), (2984, 7037723), (3388, 6198514), (4103, 5118344), (4312, 4870261), (4748, 4423034), (5222, 4021556), (5929, 3542008), (6776, 3099257), (8206, 2559172), (8309, 2527448), (9496, 2211517), (10444, 2010778), (11858, 1771004), (13057, 1608376), (16412, 1279586), (16618, 1263724), (18277, 1149016), (20888, 1005389), (23716, 885502), (26114, 804188), (28721, 731192), (32824, 639793), (33236, 631862), (36554, 574508), (45133, 465304), (47432, 442751), (52228, 402094), (57442, 365596), (58163, 361064), (66472, 315931), (73108, 287254), (90266, 232652), (91399, 229768), (104456, 201047), (114884, 182798), (116326, 180532), (143627, 146216)]