20081871

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:296

約数の個数: 32

約数和(自身を含む): 30801600

約数和(自身を除く): 10719729

約数列:

[1, 3, 9, 27, 61, 89, 137, 183, 267, 411, 549, 801, 1233, 1647, 2403, 3699, 5429, 8357, 12193, 16287, 25071, 36579, 48861, 75213, 109737, 146583, 225639, 329211, 743773, 2231319, 6693957, 20081871]

約数ペア:

[(1, 20081871), (3, 6693957), (9, 2231319), (27, 743773), (61, 329211), (89, 225639), (137, 146583), (183, 109737), (267, 75213), (411, 48861), (549, 36579), (801, 25071), (1233, 16287), (1647, 12193), (2403, 8357), (3699, 5429)]