20210245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{12671}}^1$

素因数の和:12716

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 7161275

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 12671, 63355, 139381, 367459, 696905, 1837295, 4042049, 20210245]

約数ペア:

[(1, 20210245), (5, 4042049), (11, 1837295), (29, 696905), (55, 367459), (145, 139381), (319, 63355), (1595, 12671)]