21577559

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 23585280

約数和(自身を除く): 2007721

約数列:

[1, 19, 47, 73, 331, 893, 1387, 3431, 6289, 15557, 24163, 65189, 295583, 459097, 1135661, 21577559]

約数ペア:

[(1, 21577559), (19, 1135661), (47, 459097), (73, 295583), (331, 65189), (893, 24163), (1387, 15557), (3431, 6289)]