221738396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{70979}}^1$

素因数の和:71065

約数の個数: 24

約数和(自身を含む): 429287040

約数和(自身を除く): 207548644

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 70979, 141958, 283916, 780769, 1561538, 3123076, 5039509, 10079018, 20158036, 55434599, 110869198, 221738396]

約数ペア:

[(1, 221738396), (2, 110869198), (4, 55434599), (11, 20158036), (22, 10079018), (44, 5039509), (71, 3123076), (142, 1561538), (284, 780769), (781, 283916), (1562, 141958), (3124, 70979)]