19795191

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{409}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 30582720

約数和(自身を除く): 10787529

約数列:

[1, 3, 13, 17, 39, 51, 73, 219, 221, 409, 663, 949, 1227, 1241, 2847, 3723, 5317, 6953, 15951, 16133, 20859, 29857, 48399, 89571, 90389, 271167, 388141, 507569, 1164423, 1522707, 6598397, 19795191]

約数ペア:

[(1, 19795191), (3, 6598397), (13, 1522707), (17, 1164423), (39, 507569), (51, 388141), (73, 271167), (219, 90389), (221, 89571), (409, 48399), (663, 29857), (949, 20859), (1227, 16133), (1241, 15951), (2847, 6953), (3723, 5317)]