20748685

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{277}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 25460352

約数和(自身を除く): 4711667

約数列:

[1, 5, 71, 211, 277, 355, 1055, 1385, 14981, 19667, 58447, 74905, 98335, 292235, 4149737, 20748685]

約数ペア:

[(1, 20748685), (5, 4149737), (71, 292235), (211, 98335), (277, 74905), (355, 58447), (1055, 19667), (1385, 14981)]