21559112

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{65729}}^1$

素因数の和:65776

約数の個数: 16

約数和(自身を含む): 41409900

約数和(自身を除く): 19850788

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 65729, 131458, 262916, 525832, 2694889, 5389778, 10779556, 21559112]

約数ペア:

[(1, 21559112), (2, 10779556), (4, 5389778), (8, 2694889), (41, 525832), (82, 262916), (164, 131458), (328, 65729)]