21000916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{6571}}^1$

素因数の和:6639

約数の個数: 24

約数和(自身を含む): 39747456

約数和(自身を除く): 18746540

約数列:

[1, 2, 4, 17, 34, 47, 68, 94, 188, 799, 1598, 3196, 6571, 13142, 26284, 111707, 223414, 308837, 446828, 617674, 1235348, 5250229, 10500458, 21000916]

約数ペア:

[(1, 21000916), (2, 10500458), (4, 5250229), (17, 1235348), (34, 617674), (47, 446828), (68, 308837), (94, 223414), (188, 111707), (799, 26284), (1598, 13142), (3196, 6571)]