20783964

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 50738688

約数和(自身を除く): 29954724

約数列:

[1, 2, 3, 4, 6, 12, 43, 47, 86, 94, 129, 141, 172, 188, 258, 282, 516, 564, 857, 1714, 2021, 2571, 3428, 4042, 5142, 6063, 8084, 10284, 12126, 24252, 36851, 40279, 73702, 80558, 110553, 120837, 147404, 161116, 221106, 241674, 442212, 483348, 1731997, 3463994, 5195991, 6927988, 10391982, 20783964]

約数ペア:

[(1, 20783964), (2, 10391982), (3, 6927988), (4, 5195991), (6, 3463994), (12, 1731997), (43, 483348), (47, 442212), (86, 241674), (94, 221106), (129, 161116), (141, 147404), (172, 120837), (188, 110553), (258, 80558), (282, 73702), (516, 40279), (564, 36851), (857, 24252), (1714, 12126), (2021, 10284), (2571, 8084), (3428, 6063), (4042, 5142)]