19713195

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4019}}^1$

素因数の和:4139

約数の個数: 24

約数和(自身を含む): 34491600

約数和(自身を除く): 14778405

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 545, 981, 1635, 4019, 4905, 12057, 20095, 36171, 60285, 180855, 438071, 1314213, 2190355, 3942639, 6571065, 19713195]

約数ペア:

[(1, 19713195), (3, 6571065), (5, 3942639), (9, 2190355), (15, 1314213), (45, 438071), (109, 180855), (327, 60285), (545, 36171), (981, 20095), (1635, 12057), (4019, 4905)]