21220414

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{1087}}^1$

素因数の和:1359

約数の個数: 16

約数和(自身を含む): 32744448

約数和(自身を除く): 11524034

約数列:

[1, 2, 43, 86, 227, 454, 1087, 2174, 9761, 19522, 46741, 93482, 246749, 493498, 10610207, 21220414]

約数ペア:

[(1, 21220414), (2, 10610207), (43, 493498), (86, 246749), (227, 93482), (454, 46741), (1087, 19522), (2174, 9761)]