19624905

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4001}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 34337160

約数和(自身を除く): 14712255

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4001, 4905, 12003, 20005, 36009, 60015, 180045, 436109, 1308327, 2180545, 3924981, 6541635, 19624905]

約数ペア:

[(1, 19624905), (3, 6541635), (5, 3924981), (9, 2180545), (15, 1308327), (45, 436109), (109, 180045), (327, 60015), (545, 36009), (981, 20005), (1635, 12003), (4001, 4905)]