20396061

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7529}}^1$

素因数の和:7585

約数の個数: 24

約数和(自身を含む): 34457280

約数和(自身を除く): 14061219

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7529, 22587, 52703, 67761, 158109, 323747, 474327, 971241, 2266229, 2913723, 6798687, 20396061]

約数ペア:

[(1, 20396061), (3, 6798687), (7, 2913723), (9, 2266229), (21, 971241), (43, 474327), (63, 323747), (129, 158109), (301, 67761), (387, 52703), (903, 22587), (2709, 7529)]