21895268

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{619}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 39580800

約数和(自身を除く): 17685532

約数列:

[1, 2, 4, 37, 74, 148, 239, 478, 619, 956, 1238, 2476, 8843, 17686, 22903, 35372, 45806, 91612, 147941, 295882, 591764, 5473817, 10947634, 21895268]

約数ペア:

[(1, 21895268), (2, 10947634), (4, 5473817), (37, 591764), (74, 295882), (148, 147941), (239, 91612), (478, 45806), (619, 35372), (956, 22903), (1238, 17686), (2476, 8843)]