21886360

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{761}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 49377600

約数和(自身を除く): 27491240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 761, 1438, 1522, 2876, 3044, 3595, 3805, 5752, 6088, 7190, 7610, 14380, 15220, 28760, 30440, 547159, 1094318, 2188636, 2735795, 4377272, 5471590, 10943180, 21886360]

約数ペア:

[(1, 21886360), (2, 10943180), (4, 5471590), (5, 4377272), (8, 2735795), (10, 2188636), (20, 1094318), (40, 547159), (719, 30440), (761, 28760), (1438, 15220), (1522, 14380), (2876, 7610), (3044, 7190), (3595, 6088), (3805, 5752)]