21951896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{161411}}^1$

素因数の和:161434

約数の個数: 16

約数和(自身を含む): 43581240

約数和(自身を除く): 21629344

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 161411, 322822, 645644, 1291288, 2743987, 5487974, 10975948, 21951896]

約数ペア:

[(1, 21951896), (2, 10975948), (4, 5487974), (8, 2743987), (17, 1291288), (34, 645644), (68, 322822), (136, 161411)]