19956765

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{12917}}^1$

素因数の和:13028

約数の個数: 16

約数和(自身を含む): 32243328

約数和(自身を除く): 12286563

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 12917, 38751, 64585, 193755, 1330451, 3991353, 6652255, 19956765]

約数ペア:

[(1, 19956765), (3, 6652255), (5, 3991353), (15, 1330451), (103, 193755), (309, 64585), (515, 38751), (1545, 12917)]