42780915

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22109}}^1$

素因数の和:22163

約数の個数: 24

約数和(自身を含む): 75881520

約数和(自身を除く): 33100605

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 22109, 66327, 110545, 198981, 331635, 950687, 994905, 2852061, 4753435, 8556183, 14260305, 42780915]

約数ペア:

[(1, 42780915), (3, 14260305), (5, 8556183), (9, 4753435), (15, 2852061), (43, 994905), (45, 950687), (129, 331635), (215, 198981), (387, 110545), (645, 66327), (1935, 22109)]