21716591

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{733}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 24415776

約数和(自身を除く): 2699185

約数列:

[1, 13, 43, 53, 559, 689, 733, 2279, 9529, 29627, 31519, 38849, 409747, 505037, 1670507, 21716591]

約数ペア:

[(1, 21716591), (13, 1670507), (43, 505037), (53, 409747), (559, 38849), (689, 31519), (733, 29627), (2279, 9529)]