28686915

素因数分解:

$3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2011}}^1$

素因数の和:2339

約数の個数: 24

約数和(自身を含む): 49905648

約数和(自身を除く): 21218733

約数列:

[1, 3, 5, 9, 15, 45, 317, 951, 1585, 2011, 2853, 4755, 6033, 10055, 14265, 18099, 30165, 90495, 637487, 1912461, 3187435, 5737383, 9562305, 28686915]

約数ペア:

[(1, 28686915), (3, 9562305), (5, 5737383), (9, 3187435), (15, 1912461), (45, 637487), (317, 90495), (951, 30165), (1585, 18099), (2011, 14265), (2853, 10055), (4755, 6033)]