20212716

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 48934368

約数和(自身を除く): 28721652

約数列:

[1, 2, 3, 4, 6, 12, 53, 61, 106, 122, 159, 183, 212, 244, 318, 366, 521, 636, 732, 1042, 1563, 2084, 3126, 3233, 6252, 6466, 9699, 12932, 19398, 27613, 31781, 38796, 55226, 63562, 82839, 95343, 110452, 127124, 165678, 190686, 331356, 381372, 1684393, 3368786, 5053179, 6737572, 10106358, 20212716]

約数ペア:

[(1, 20212716), (2, 10106358), (3, 6737572), (4, 5053179), (6, 3368786), (12, 1684393), (53, 381372), (61, 331356), (106, 190686), (122, 165678), (159, 127124), (183, 110452), (212, 95343), (244, 82839), (318, 63562), (366, 55226), (521, 38796), (636, 31781), (732, 27613), (1042, 19398), (1563, 12932), (2084, 9699), (3126, 6466), (3233, 6252)]