20138535

素因数分解:

$3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1063}}^1$

素因数の和:1495

約数の個数: 24

約数和(自身を含む): 35022624

約数和(自身を除く): 14884089

約数列:

[1, 3, 5, 9, 15, 45, 421, 1063, 1263, 2105, 3189, 3789, 5315, 6315, 9567, 15945, 18945, 47835, 447523, 1342569, 2237615, 4027707, 6712845, 20138535]

約数ペア:

[(1, 20138535), (3, 6712845), (5, 4027707), (9, 2237615), (15, 1342569), (45, 447523), (421, 47835), (1063, 18945), (1263, 15945), (2105, 9567), (3189, 6315), (3789, 5315)]