20376009

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{491}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 31881600

約数和(自身を除く): 11505591

約数列:

[1, 3, 9, 27, 29, 53, 87, 159, 261, 477, 491, 783, 1431, 1473, 1537, 4419, 4611, 13257, 13833, 14239, 26023, 41499, 42717, 78069, 128151, 234207, 384453, 702621, 754667, 2264001, 6792003, 20376009]

約数ペア:

[(1, 20376009), (3, 6792003), (9, 2264001), (27, 754667), (29, 702621), (53, 384453), (87, 234207), (159, 128151), (261, 78069), (477, 42717), (491, 41499), (783, 26023), (1431, 14239), (1473, 13833), (1537, 13257), (4419, 4611)]