127908081

素因数分解:

$3^2\times 7^2\times {\mathrm{290041}}^1$

素因数の和:290061

約数の個数: 18

約数和(自身を含む): 214921122

約数和(自身を除く): 87013041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 290041, 870123, 2030287, 2610369, 6090861, 14212009, 18272583, 42636027, 127908081]

約数ペア:

[(1, 127908081), (3, 42636027), (7, 18272583), (9, 14212009), (21, 6090861), (49, 2610369), (63, 2030287), (147, 870123), (441, 290041)]