210981010

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{99991}}^1$

素因数の和:100209

約数の個数: 16

約数和(自身を含む): 381569472

約数和(自身を除く): 170588462

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 99991, 199982, 499955, 999910, 21098101, 42196202, 105490505, 210981010]

約数ペア:

[(1, 210981010), (2, 105490505), (5, 42196202), (10, 21098101), (211, 999910), (422, 499955), (1055, 199982), (2110, 99991)]