21173187985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{727}}^1\times {\mathrm{2713}}^1$

素因数の和:3577

約数の個数: 32

約数和(自身を含む): 27028834560

約数和(自身を除く): 5855646575

約数列:

[1, 5, 19, 95, 113, 565, 727, 2147, 2713, 3635, 10735, 13565, 13813, 51547, 69065, 82151, 257735, 306569, 410755, 1532845, 1560869, 1972351, 5824811, 7804345, 9861755, 29124055, 37474669, 187373345, 222875663, 1114378315, 4234637597, 21173187985]

約数ペア:

[(1, 21173187985), (5, 4234637597), (19, 1114378315), (95, 222875663), (113, 187373345), (565, 37474669), (727, 29124055), (2147, 9861755), (2713, 7804345), (3635, 5824811), (10735, 1972351), (13565, 1560869), (13813, 1532845), (51547, 410755), (69065, 306569), (82151, 257735)]