21987314

素因数分解:

$2^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:745

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 11501326

約数列:

[1, 2, 113, 226, 271, 359, 542, 718, 30623, 40567, 61246, 81134, 97289, 194578, 10993657, 21987314]

約数ペア:

[(1, 21987314), (2, 10993657), (113, 194578), (226, 97289), (271, 81134), (359, 61246), (542, 40567), (718, 30623)]