21935746

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 42550272

約数和(自身を除く): 20614526

約数列:

[1, 2, 7, 14, 17, 34, 37, 47, 53, 74, 94, 106, 119, 238, 259, 329, 371, 518, 629, 658, 742, 799, 901, 1258, 1598, 1739, 1802, 1961, 2491, 3478, 3922, 4403, 4982, 5593, 6307, 8806, 11186, 12173, 12614, 13727, 17437, 24346, 27454, 29563, 33337, 34874, 42347, 59126, 66674, 84694, 92167, 184334, 206941, 233359, 296429, 413882, 466718, 592858, 645169, 1290338, 1566839, 3133678, 10967873, 21935746]

約数ペア:

[(1, 21935746), (2, 10967873), (7, 3133678), (14, 1566839), (17, 1290338), (34, 645169), (37, 592858), (47, 466718), (53, 413882), (74, 296429), (94, 233359), (106, 206941), (119, 184334), (238, 92167), (259, 84694), (329, 66674), (371, 59126), (518, 42347), (629, 34874), (658, 33337), (742, 29563), (799, 27454), (901, 24346), (1258, 17437), (1598, 13727), (1739, 12614), (1802, 12173), (1961, 11186), (2491, 8806), (3478, 6307), (3922, 5593), (4403, 4982)]