18361647

素因数分解:

$3^4\times {\mathrm{397}}^1\times {\mathrm{571}}^1$

素因数の和:980

約数の個数: 20

約数和(自身を含む): 27546376

約数和(自身を除く): 9184729

約数列:

[1, 3, 9, 27, 81, 397, 571, 1191, 1713, 3573, 5139, 10719, 15417, 32157, 46251, 226687, 680061, 2040183, 6120549, 18361647]

約数ペア:

[(1, 18361647), (3, 6120549), (9, 2040183), (27, 680061), (81, 226687), (397, 46251), (571, 32157), (1191, 15417), (1713, 10719), (3573, 5139)]