21952469

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2081}}^1$

素因数の和:2236

約数の個数: 16

約数和(自身を含む): 27582336

約数和(自身を除く): 5629867

約数列:

[1, 7, 11, 77, 137, 959, 1507, 2081, 10549, 14567, 22891, 160237, 285097, 1995679, 3136067, 21952469]

約数ペア:

[(1, 21952469), (7, 3136067), (11, 1995679), (77, 285097), (137, 160237), (959, 22891), (1507, 14567), (2081, 10549)]