21990358

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{22859}}^1$

素因数の和:22911

約数の個数: 16

約数和(自身を含む): 36484560

約数和(自身を除く): 14494202

約数列:

[1, 2, 13, 26, 37, 74, 481, 962, 22859, 45718, 297167, 594334, 845783, 1691566, 10995179, 21990358]

約数ペア:

[(1, 21990358), (2, 10995179), (13, 1691566), (26, 845783), (37, 594334), (74, 297167), (481, 45718), (962, 22859)]