19955205

素因数分解:

$3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1117}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 34707192

約数和(自身を除く): 14751987

約数列:

[1, 3, 5, 9, 15, 45, 397, 1117, 1191, 1985, 3351, 3573, 5585, 5955, 10053, 16755, 17865, 50265, 443449, 1330347, 2217245, 3991041, 6651735, 19955205]

約数ペア:

[(1, 19955205), (3, 6651735), (5, 3991041), (9, 2217245), (15, 1330347), (45, 443449), (397, 50265), (1117, 17865), (1191, 16755), (1985, 10053), (3351, 5955), (3573, 5585)]