21356176

素因数分解:

$2^4\times {\mathrm{647}}^1\times {\mathrm{2063}}^1$

素因数の和:2718

約数の個数: 20

約数和(自身を含む): 41461632

約数和(自身を除く): 20105456

約数列:

[1, 2, 4, 8, 16, 647, 1294, 2063, 2588, 4126, 5176, 8252, 10352, 16504, 33008, 1334761, 2669522, 5339044, 10678088, 21356176]

約数ペア:

[(1, 21356176), (2, 10678088), (4, 5339044), (8, 2669522), (16, 1334761), (647, 33008), (1294, 16504), (2063, 10352), (2588, 8252), (4126, 5176)]