21050078

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31991}}^1$

素因数の和:32047

約数の個数: 16

約数和(自身を含む): 36854784

約数和(自身を除く): 15804706

約数列:

[1, 2, 7, 14, 47, 94, 329, 658, 31991, 63982, 223937, 447874, 1503577, 3007154, 10525039, 21050078]

約数ペア:

[(1, 21050078), (2, 10525039), (7, 3007154), (14, 1503577), (47, 447874), (94, 223937), (329, 63982), (658, 31991)]