21127408

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8101}}^1$

素因数の和:8272

約数の個数: 20

約数和(自身を含む): 41190568

約数和(自身を除く): 20063160

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8101, 16202, 32404, 64808, 129616, 1320463, 2640926, 5281852, 10563704, 21127408]

約数ペア:

[(1, 21127408), (2, 10563704), (4, 5281852), (8, 2640926), (16, 1320463), (163, 129616), (326, 64808), (652, 32404), (1304, 16202), (2608, 8101)]