2145915

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1163

約数の個数: 24

約数和(自身を含む): 3809520

約数和(自身を除く): 1663605

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1109, 1935, 3327, 5545, 9981, 16635, 47687, 49905, 143061, 238435, 429183, 715305, 2145915]

約数ペア:

[(1, 2145915), (3, 715305), (5, 429183), (9, 238435), (15, 143061), (43, 49905), (45, 47687), (129, 16635), (215, 9981), (387, 5545), (645, 3327), (1109, 1935)]