18171855

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31063}}^1$

素因数の和:31087

約数の個数: 24

約数和(自身を含む): 33921888

約数和(自身を除く): 15750033

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 31063, 93189, 155315, 279567, 403819, 465945, 1211457, 1397835, 2019095, 3634371, 6057285, 18171855]

約数ペア:

[(1, 18171855), (3, 6057285), (5, 3634371), (9, 2019095), (13, 1397835), (15, 1211457), (39, 465945), (45, 403819), (65, 279567), (117, 155315), (195, 93189), (585, 31063)]