21307572

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4139}}^1$

素因数の和:4173

約数の個数: 72

約数和(自身を含む): 63292320

約数和(自身を除く): 41984748

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4139, 5148, 8278, 12417, 16556, 24834, 37251, 45529, 49668, 53807, 74502, 91058, 107614, 136587, 149004, 161421, 182116, 215228, 273174, 322842, 409761, 484263, 546348, 591877, 645684, 819522, 968526, 1183754, 1639044, 1775631, 1937052, 2367508, 3551262, 5326893, 7102524, 10653786, 21307572]

約数ペア:

[(1, 21307572), (2, 10653786), (3, 7102524), (4, 5326893), (6, 3551262), (9, 2367508), (11, 1937052), (12, 1775631), (13, 1639044), (18, 1183754), (22, 968526), (26, 819522), (33, 645684), (36, 591877), (39, 546348), (44, 484263), (52, 409761), (66, 322842), (78, 273174), (99, 215228), (117, 182116), (132, 161421), (143, 149004), (156, 136587), (198, 107614), (234, 91058), (286, 74502), (396, 53807), (429, 49668), (468, 45529), (572, 37251), (858, 24834), (1287, 16556), (1716, 12417), (2574, 8278), (4139, 5148)]