12911312

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{1973}}^1$

素因数の和:2390

約数の個数: 20

約数和(自身を含む): 25089540

約数和(自身を除く): 12178228

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 1973, 3272, 3946, 6544, 7892, 15784, 31568, 806957, 1613914, 3227828, 6455656, 12911312]

約数ペア:

[(1, 12911312), (2, 6455656), (4, 3227828), (8, 1613914), (16, 806957), (409, 31568), (818, 15784), (1636, 7892), (1973, 6544), (3272, 3946)]