20955964

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1669}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 38062640

約数和(自身を除く): 17106676

約数列:

[1, 2, 4, 43, 73, 86, 146, 172, 292, 1669, 3139, 3338, 6278, 6676, 12556, 71767, 121837, 143534, 243674, 287068, 487348, 5238991, 10477982, 20955964]

約数ペア:

[(1, 20955964), (2, 10477982), (4, 5238991), (43, 487348), (73, 287068), (86, 243674), (146, 143534), (172, 121837), (292, 71767), (1669, 12556), (3139, 6676), (3338, 6278)]