21403723

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1223}}^1$

素因数の和:1314

約数の個数: 16

約数和(自身を含む): 24558336

約数和(自身を除く): 3154613

約数列:

[1, 11, 37, 43, 407, 473, 1223, 1591, 13453, 17501, 45251, 52589, 497761, 578479, 1945793, 21403723]

約数ペア:

[(1, 21403723), (11, 1945793), (37, 578479), (43, 497761), (407, 52589), (473, 45251), (1223, 17501), (1591, 13453)]