20797209212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{4493779}}^1$

素因数の和:4493885

約数の個数: 24

約数和(自身を含む): 39635139600

約数和(自身を除く): 18837930388

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 4493779, 8987558, 17975116, 58419127, 116838254, 233676508, 399946331, 799892662, 1599785324, 5199302303, 10398604606, 20797209212]

約数ペア:

[(1, 20797209212), (2, 10398604606), (4, 5199302303), (13, 1599785324), (26, 799892662), (52, 399946331), (89, 233676508), (178, 116838254), (356, 58419127), (1157, 17975116), (2314, 8987558), (4628, 4493779)]