20377485

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10531}}^1$

素因数の和:10585

約数の個数: 24

約数和(自身を含む): 36145824

約数和(自身を除く): 15768339

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 10531, 31593, 52655, 94779, 157965, 452833, 473895, 1358499, 2264165, 4075497, 6792495, 20377485]

約数ペア:

[(1, 20377485), (3, 6792495), (5, 4075497), (9, 2264165), (15, 1358499), (43, 473895), (45, 452833), (129, 157965), (215, 94779), (387, 52655), (645, 31593), (1935, 10531)]