15856555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:427

約数の個数: 32

約数和(自身を含む): 22756608

約数和(自身を除く): 6900053

約数列:

[1, 5, 11, 13, 55, 65, 67, 143, 331, 335, 715, 737, 871, 1655, 3641, 3685, 4303, 4355, 9581, 18205, 21515, 22177, 47333, 47905, 110885, 236665, 243947, 288301, 1219735, 1441505, 3171311, 15856555]

約数ペア:

[(1, 15856555), (5, 3171311), (11, 1441505), (13, 1219735), (55, 288301), (65, 243947), (67, 236665), (143, 110885), (331, 47905), (335, 47333), (715, 22177), (737, 21515), (871, 18205), (1655, 9581), (3641, 4355), (3685, 4303)]