28259505

素因数分解:

$3^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1279}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 49121280

約数和(自身を除く): 20861775

約数列:

[1, 3, 5, 9, 15, 45, 491, 1279, 1473, 2455, 3837, 4419, 6395, 7365, 11511, 19185, 22095, 57555, 627989, 1883967, 3139945, 5651901, 9419835, 28259505]

約数ペア:

[(1, 28259505), (3, 9419835), (5, 5651901), (9, 3139945), (15, 1883967), (45, 627989), (491, 57555), (1279, 22095), (1473, 19185), (2455, 11511), (3837, 7365), (4419, 6395)]