19994565

素因数分解:

$3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{5531}}^1$

素因数の和:5780

約数の個数: 16

約数和(自身を含む): 32129856

約数和(自身を除く): 12135291

約数列:

[1, 3, 5, 15, 241, 723, 1205, 3615, 5531, 16593, 27655, 82965, 1332971, 3998913, 6664855, 19994565]

約数ペア:

[(1, 19994565), (3, 6664855), (5, 3998913), (15, 1332971), (241, 82965), (723, 27655), (1205, 16593), (3615, 5531)]