18819722

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{659}}^1$

素因数の和:901

約数の個数: 16

約数和(自身を含む): 28749600

約数和(自身を除く): 9929878

約数列:

[1, 2, 109, 131, 218, 262, 659, 1318, 14279, 28558, 71831, 86329, 143662, 172658, 9409861, 18819722]

約数ペア:

[(1, 18819722), (2, 9409861), (109, 172658), (131, 143662), (218, 86329), (262, 71831), (659, 28558), (1318, 14279)]