21722224

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31573}}^1$

素因数の和:31624

約数の個数: 20

約数和(自身を含む): 43066936

約数和(自身を除く): 21344712

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31573, 63146, 126292, 252584, 505168, 1357639, 2715278, 5430556, 10861112, 21722224]

約数ペア:

[(1, 21722224), (2, 10861112), (4, 5430556), (8, 2715278), (16, 1357639), (43, 505168), (86, 252584), (172, 126292), (344, 63146), (688, 31573)]