20573905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12899}}^1$

素因数の和:12944

約数の個数: 16

約数和(自身を含む): 27864000

約数和(自身を除く): 7290095

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12899, 64495, 141889, 374071, 709445, 1870355, 4114781, 20573905]

約数ペア:

[(1, 20573905), (5, 4114781), (11, 1870355), (29, 709445), (55, 374071), (145, 141889), (319, 64495), (1595, 12899)]