39981615

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61987}}^1$

素因数の和:62038

約数の個数: 16

約数和(自身を含む): 65459328

約数和(自身を除く): 25477713

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 61987, 185961, 309935, 929805, 2665441, 7996323, 13327205, 39981615]

約数ペア:

[(1, 39981615), (3, 13327205), (5, 7996323), (15, 2665441), (43, 929805), (129, 309935), (215, 185961), (645, 61987)]