19883305

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2053}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 25880400

約数和(自身を除く): 5997095

約数列:

[1, 5, 13, 65, 149, 745, 1937, 2053, 9685, 10265, 26689, 133445, 305897, 1529485, 3976661, 19883305]

約数ペア:

[(1, 19883305), (5, 3976661), (13, 1529485), (65, 305897), (149, 133445), (745, 26689), (1937, 10265), (2053, 9685)]