21831778

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{1201}}^1$

素因数の和:1413

約数の個数: 16

約数和(自身を含む): 33535800

約数和(自身を除く): 11704022

約数列:

[1, 2, 61, 122, 149, 298, 1201, 2402, 9089, 18178, 73261, 146522, 178949, 357898, 10915889, 21831778]

約数ペア:

[(1, 21831778), (2, 10915889), (61, 357898), (122, 178949), (149, 146522), (298, 73261), (1201, 18178), (2402, 9089)]