21371756045

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{521}}^1\times {\mathrm{2801}}^1$

素因数の和:3457

約数の個数: 32

約数和(自身を含む): 26854143840

約数和(自身を除く): 5482387795

約数列:

[1, 5, 29, 101, 145, 505, 521, 2605, 2801, 2929, 14005, 14645, 15109, 52621, 75545, 81229, 263105, 282901, 406145, 1414505, 1459321, 1526009, 7296605, 7630045, 8204129, 41020645, 42320309, 147391421, 211601545, 736957105, 4274351209, 21371756045]

約数ペア:

[(1, 21371756045), (5, 4274351209), (29, 736957105), (101, 211601545), (145, 147391421), (505, 42320309), (521, 41020645), (2605, 8204129), (2801, 7630045), (2929, 7296605), (14005, 1526009), (14645, 1459321), (15109, 1414505), (52621, 406145), (75545, 282901), (81229, 263105)]