20370996

素因数分解:

$2^2\times 3^2\times {\mathrm{571}}^1\times {\mathrm{991}}^1$

素因数の和:1572

約数の個数: 36

約数和(自身を含む): 51635584

約数和(自身を除く): 31264588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 571, 991, 1142, 1713, 1982, 2284, 2973, 3426, 3964, 5139, 5946, 6852, 8919, 10278, 11892, 17838, 20556, 35676, 565861, 1131722, 1697583, 2263444, 3395166, 5092749, 6790332, 10185498, 20370996]

約数ペア:

[(1, 20370996), (2, 10185498), (3, 6790332), (4, 5092749), (6, 3395166), (9, 2263444), (12, 1697583), (18, 1131722), (36, 565861), (571, 35676), (991, 20556), (1142, 17838), (1713, 11892), (1982, 10278), (2284, 8919), (2973, 6852), (3426, 5946), (3964, 5139)]