21111184

素因数分解:

$2^4\times {\mathrm{709}}^1\times {\mathrm{1861}}^1$

素因数の和:2578

約数の個数: 20

約数和(自身を含む): 40982620

約数和(自身を除く): 19871436

約数列:

[1, 2, 4, 8, 16, 709, 1418, 1861, 2836, 3722, 5672, 7444, 11344, 14888, 29776, 1319449, 2638898, 5277796, 10555592, 21111184]

約数ペア:

[(1, 21111184), (2, 10555592), (4, 5277796), (8, 2638898), (16, 1319449), (709, 29776), (1418, 14888), (1861, 11344), (2836, 7444), (3722, 5672)]