20671308

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:796

約数の個数: 96

約数和(自身を含む): 62988800

約数和(自身を除く): 42317492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 84, 108, 111, 126, 148, 189, 222, 252, 259, 333, 378, 444, 518, 666, 739, 756, 777, 999, 1036, 1332, 1478, 1554, 1998, 2217, 2331, 2956, 3108, 3996, 4434, 4662, 5173, 6651, 6993, 8868, 9324, 10346, 13302, 13986, 15519, 19953, 20692, 26604, 27343, 27972, 31038, 39906, 46557, 54686, 62076, 79812, 82029, 93114, 109372, 139671, 164058, 186228, 191401, 246087, 279342, 328116, 382802, 492174, 558684, 574203, 738261, 765604, 984348, 1148406, 1476522, 1722609, 2296812, 2953044, 3445218, 5167827, 6890436, 10335654, 20671308]

約数ペア:

[(1, 20671308), (2, 10335654), (3, 6890436), (4, 5167827), (6, 3445218), (7, 2953044), (9, 2296812), (12, 1722609), (14, 1476522), (18, 1148406), (21, 984348), (27, 765604), (28, 738261), (36, 574203), (37, 558684), (42, 492174), (54, 382802), (63, 328116), (74, 279342), (84, 246087), (108, 191401), (111, 186228), (126, 164058), (148, 139671), (189, 109372), (222, 93114), (252, 82029), (259, 79812), (333, 62076), (378, 54686), (444, 46557), (518, 39906), (666, 31038), (739, 27972), (756, 27343), (777, 26604), (999, 20692), (1036, 19953), (1332, 15519), (1478, 13986), (1554, 13302), (1998, 10346), (2217, 9324), (2331, 8868), (2956, 6993), (3108, 6651), (3996, 5173), (4434, 4662)]