21185565

素因数分解:

$3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{9479}}^1$

素因数の和:9636

約数の個数: 16

約数和(自身を含む): 34128000

約数和(自身を除く): 12942435

約数列:

[1, 3, 5, 15, 149, 447, 745, 2235, 9479, 28437, 47395, 142185, 1412371, 4237113, 7061855, 21185565]

約数ペア:

[(1, 21185565), (3, 7061855), (5, 4237113), (15, 1412371), (149, 142185), (447, 47395), (745, 28437), (2235, 9479)]