21612709

素因数分解:

${\mathrm{19}}^3\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:217

約数の個数: 16

約数和(自身を含む): 23978880

約数和(自身を除く): 2366171

約数列:

[1, 19, 23, 137, 361, 437, 2603, 3151, 6859, 8303, 49457, 59869, 157757, 939683, 1137511, 21612709]

約数ペア:

[(1, 21612709), (19, 1137511), (23, 939683), (137, 157757), (361, 59869), (437, 49457), (2603, 8303), (3151, 6859)]