21016156655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1091}}^1\times {\mathrm{5023}}^1$

素因数の和:6191

約数の個数: 32

約数和(自身を含む): 27650488320

約数和(自身を除く): 6634331665

約数列:

[1, 5, 13, 59, 65, 295, 767, 1091, 3835, 5023, 5455, 14183, 25115, 64369, 65299, 70915, 296357, 321845, 326495, 836797, 1481785, 3852641, 4183985, 5480093, 19263205, 27400465, 71241209, 323325487, 356206045, 1616627435, 4203231331, 21016156655]

約数ペア:

[(1, 21016156655), (5, 4203231331), (13, 1616627435), (59, 356206045), (65, 323325487), (295, 71241209), (767, 27400465), (1091, 19263205), (3835, 5480093), (5023, 4183985), (5455, 3852641), (14183, 1481785), (25115, 836797), (64369, 326495), (65299, 321845), (70915, 296357)]