21000604405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{20921}}^1\times {\mathrm{18251}}^1$

素因数の和:39188

約数の個数: 16

約数和(自身を含む): 27494520768

約数和(自身を除く): 6493916363

約数列:

[1, 5, 11, 55, 18251, 20921, 91255, 104605, 200761, 230131, 1003805, 1150655, 381829171, 1909145855, 4200120881, 21000604405]

約数ペア:

[(1, 21000604405), (5, 4200120881), (11, 1909145855), (55, 381829171), (18251, 1150655), (20921, 1003805), (91255, 230131), (104605, 200761)]