20105739

素因数分解:

$3^4\times {\mathrm{401}}^1\times {\mathrm{619}}^1$

素因数の和:1032

約数の個数: 20

約数和(自身を含む): 30158040

約数和(自身を除く): 10052301

約数列:

[1, 3, 9, 27, 81, 401, 619, 1203, 1857, 3609, 5571, 10827, 16713, 32481, 50139, 248219, 744657, 2233971, 6701913, 20105739]

約数ペア:

[(1, 20105739), (3, 6701913), (9, 2233971), (27, 744657), (81, 248219), (401, 50139), (619, 32481), (1203, 16713), (1857, 10827), (3609, 5571)]