21131360

素因数分解:

$2^5\times 5^1\times {\mathrm{132071}}^1$

素因数の和:132086

約数の個数: 24

約数和(自身を含む): 49923216

約数和(自身を除く): 28791856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132071, 264142, 528284, 660355, 1056568, 1320710, 2113136, 2641420, 4226272, 5282840, 10565680, 21131360]

約数ペア:

[(1, 21131360), (2, 10565680), (4, 5282840), (5, 4226272), (8, 2641420), (10, 2113136), (16, 1320710), (20, 1056568), (32, 660355), (40, 528284), (80, 264142), (160, 132071)]