21043288

素因数分解:

$2^3\times 7^1\times {\mathrm{375773}}^1$

素因数の和:375786

約数の個数: 16

約数和(自身を含む): 45092880

約数和(自身を除く): 24049592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 375773, 751546, 1503092, 2630411, 3006184, 5260822, 10521644, 21043288]

約数ペア:

[(1, 21043288), (2, 10521644), (4, 5260822), (7, 3006184), (8, 2630411), (14, 1503092), (28, 751546), (56, 375773)]