21943155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{859}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 38142720

約数和(自身を除く): 16199565

約数列:

[1, 3, 5, 13, 15, 39, 65, 131, 195, 393, 655, 859, 1703, 1965, 2577, 4295, 5109, 8515, 11167, 12885, 25545, 33501, 55835, 112529, 167505, 337587, 562645, 1462877, 1687935, 4388631, 7314385, 21943155]

約数ペア:

[(1, 21943155), (3, 7314385), (5, 4388631), (13, 1687935), (15, 1462877), (39, 562645), (65, 337587), (131, 167505), (195, 112529), (393, 55835), (655, 33501), (859, 25545), (1703, 12885), (1965, 11167), (2577, 8515), (4295, 5109)]