20890736

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4253}}^1$

素因数の和:4568

約数の個数: 20

約数和(自身を含む): 40617192

約数和(自身を除く): 19726456

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4253, 4912, 8506, 17012, 34024, 68048, 1305671, 2611342, 5222684, 10445368, 20890736]

約数ペア:

[(1, 20890736), (2, 10445368), (4, 5222684), (8, 2611342), (16, 1305671), (307, 68048), (614, 34024), (1228, 17012), (2456, 8506), (4253, 4912)]