21000902576

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32013571}}^1$

素因数の和:32013620

約数の個数: 20

約数和(自身を含む): 41681670744

約数和(自身を除く): 20680768168

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32013571, 64027142, 128054284, 256108568, 512217136, 1312556411, 2625112822, 5250225644, 10500451288, 21000902576]

約数ペア:

[(1, 21000902576), (2, 10500451288), (4, 5250225644), (8, 2625112822), (16, 1312556411), (41, 512217136), (82, 256108568), (164, 128054284), (328, 64027142), (656, 32013571)]