12663621

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{1979}}^1$

素因数の和:2070

約数の個数: 20

約数和(自身を含む): 19166400

約数和(自身を除く): 6502779

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 1979, 2133, 5937, 6399, 17811, 53433, 156341, 160299, 469023, 1407069, 4221207, 12663621]

約数ペア:

[(1, 12663621), (3, 4221207), (9, 1407069), (27, 469023), (79, 160299), (81, 156341), (237, 53433), (711, 17811), (1979, 6399), (2133, 5937)]