21619954

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{27647}}^1$

素因数の和:27689

約数の個数: 16

約数和(自身を含む): 35831808

約数和(自身を除く): 14211854

約数列:

[1, 2, 17, 23, 34, 46, 391, 782, 27647, 55294, 469999, 635881, 939998, 1271762, 10809977, 21619954]

約数ペア:

[(1, 21619954), (2, 10809977), (17, 1271762), (23, 939998), (34, 635881), (46, 469999), (391, 55294), (782, 27647)]