20972984

素因数分解:

$2^3\times {\mathrm{227}}^1\times {\mathrm{11549}}^1$

素因数の和:11782

約数の個数: 16

約数和(自身を含む): 39501000

約数和(自身を除く): 18528016

約数列:

[1, 2, 4, 8, 227, 454, 908, 1816, 11549, 23098, 46196, 92392, 2621623, 5243246, 10486492, 20972984]

約数ペア:

[(1, 20972984), (2, 10486492), (4, 5243246), (8, 2621623), (227, 92392), (454, 46196), (908, 23098), (1816, 11549)]