19972730

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19391}}^1$

素因数の和:19501

約数の個数: 16

約数和(自身を含む): 36301824

約数和(自身を除く): 16329094

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 19391, 38782, 96955, 193910, 1997273, 3994546, 9986365, 19972730]

約数ペア:

[(1, 19972730), (2, 9986365), (5, 3994546), (10, 1997273), (103, 193910), (206, 96955), (515, 38782), (1030, 19391)]