20211884615

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{769}}^1\times {\mathrm{1439}}^1$

素因数の和:2507

約数の個数: 32

約数和(自身を含む): 26265254400

約数和(自身を除く): 6053369785

約数列:

[1, 5, 13, 65, 281, 769, 1405, 1439, 3653, 3845, 7195, 9997, 18265, 18707, 49985, 93535, 216089, 404359, 1080445, 1106591, 2021795, 2809157, 5256667, 5532955, 14045785, 14385683, 26283335, 71928415, 310952071, 1554760355, 4042376923, 20211884615]

約数ペア:

[(1, 20211884615), (5, 4042376923), (13, 1554760355), (65, 310952071), (281, 71928415), (769, 26283335), (1405, 14385683), (1439, 14045785), (3653, 5532955), (3845, 5256667), (7195, 2809157), (9997, 2021795), (18265, 1106591), (18707, 1080445), (49985, 404359), (93535, 216089)]