20841788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{2617}}^1$

素因数の和:2813

約数の個数: 24

約数和(自身を含む): 40023984

約数和(自身を除く): 19182196

約数列:

[1, 2, 4, 11, 22, 44, 181, 362, 724, 1991, 2617, 3982, 5234, 7964, 10468, 28787, 57574, 115148, 473677, 947354, 1894708, 5210447, 10420894, 20841788]

約数ペア:

[(1, 20841788), (2, 10420894), (4, 5210447), (11, 1894708), (22, 947354), (44, 473677), (181, 115148), (362, 57574), (724, 28787), (1991, 10468), (2617, 7964), (3982, 5234)]