20842492

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43063}}^1$

素因数の和:43089

約数の個数: 18

約数和(自身を含む): 40092584

約数和(自身を除く): 19250092

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43063, 86126, 172252, 473693, 947386, 1894772, 5210623, 10421246, 20842492]

約数ペア:

[(1, 20842492), (2, 10421246), (4, 5210623), (11, 1894772), (22, 947386), (44, 473693), (121, 172252), (242, 86126), (484, 43063)]