13218615

素因数分解:

$3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1871}}^1$

素因数の和:2039

約数の個数: 24

約数和(自身を含む): 23070528

約数和(自身を除く): 9851913

約数列:

[1, 3, 5, 9, 15, 45, 157, 471, 785, 1413, 1871, 2355, 5613, 7065, 9355, 16839, 28065, 84195, 293747, 881241, 1468735, 2643723, 4406205, 13218615]

約数ペア:

[(1, 13218615), (3, 4406205), (5, 2643723), (9, 1468735), (15, 881241), (45, 293747), (157, 84195), (471, 28065), (785, 16839), (1413, 9355), (1871, 7065), (2355, 5613)]