639757671

素因数分解:

$3^1\times 7^2\times {\mathrm{317}}^1\times {\mathrm{13729}}^1$

素因数の和:14063

約数の個数: 24

約数和(自身を含む): 995479920

約数和(自身を除く): 355722249

約数列:

[1, 3, 7, 21, 49, 147, 317, 951, 2219, 6657, 13729, 15533, 41187, 46599, 96103, 288309, 672721, 2018163, 4352093, 13056279, 30464651, 91393953, 213252557, 639757671]

約数ペア:

[(1, 639757671), (3, 213252557), (7, 91393953), (21, 30464651), (49, 13056279), (147, 4352093), (317, 2018163), (951, 672721), (2219, 288309), (6657, 96103), (13729, 46599), (15533, 41187)]