20937805821

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{664123}}^1$

素因数の和:664273

約数の個数: 24

約数和(自身を含む): 31495416576

約数和(自身を除く): 10557610755

約数列:

[1, 3, 9, 31, 93, 113, 279, 339, 1017, 3503, 10509, 31527, 664123, 1992369, 5977107, 20587813, 61763439, 75045899, 185290317, 225137697, 675413091, 2326422869, 6979268607, 20937805821]

約数ペア:

[(1, 20937805821), (3, 6979268607), (9, 2326422869), (31, 675413091), (93, 225137697), (113, 185290317), (279, 75045899), (339, 61763439), (1017, 20587813), (3503, 5977107), (10509, 1992369), (31527, 664123)]