18946215

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1747}}^1$

素因数の和:1999

約数の個数: 24

約数和(自身を含む): 32995248

約数和(自身を除く): 14049033

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 1747, 2169, 3615, 5241, 8735, 10845, 15723, 26205, 78615, 421027, 1263081, 2105135, 3789243, 6315405, 18946215]

約数ペア:

[(1, 18946215), (3, 6315405), (5, 3789243), (9, 2105135), (15, 1263081), (45, 421027), (241, 78615), (723, 26205), (1205, 15723), (1747, 10845), (2169, 8735), (3615, 5241)]