20328968

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21001}}^1$

素因数の和:21029

約数の個数: 24

約数和(自身を含む): 41898990

約数和(自身を除く): 21570022

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21001, 42002, 84004, 168008, 231011, 462022, 924044, 1848088, 2541121, 5082242, 10164484, 20328968]

約数ペア:

[(1, 20328968), (2, 10164484), (4, 5082242), (8, 2541121), (11, 1848088), (22, 924044), (44, 462022), (88, 231011), (121, 168008), (242, 84004), (484, 42002), (968, 21001)]