21654872

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159227}}^1$

素因数の和:159250

約数の個数: 16

約数和(自身を含む): 42991560

約数和(自身を除く): 21336688

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159227, 318454, 636908, 1273816, 2706859, 5413718, 10827436, 21654872]

約数ペア:

[(1, 21654872), (2, 10827436), (4, 5413718), (8, 2706859), (17, 1273816), (34, 636908), (68, 318454), (136, 159227)]