21307335

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{661}}^1$

素因数の和:983

約数の個数: 32

約数和(自身を含む): 39148032

約数和(自身を除く): 17840697

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 307, 661, 921, 1535, 1983, 2149, 3305, 4605, 4627, 6447, 9915, 10745, 13881, 23135, 32235, 69405, 202927, 608781, 1014635, 1420489, 3043905, 4261467, 7102445, 21307335]

約数ペア:

[(1, 21307335), (3, 7102445), (5, 4261467), (7, 3043905), (15, 1420489), (21, 1014635), (35, 608781), (105, 202927), (307, 69405), (661, 32235), (921, 23135), (1535, 13881), (1983, 10745), (2149, 9915), (3305, 6447), (4605, 4627)]