20416778

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4987}}^1$

素因数の和:5101

約数の個数: 16

約数和(自身を含む): 32322240

約数和(自身を除く): 11905462

約数列:

[1, 2, 23, 46, 89, 178, 2047, 4094, 4987, 9974, 114701, 229402, 443843, 887686, 10208389, 20416778]

約数ペア:

[(1, 20416778), (2, 10208389), (23, 887686), (46, 443843), (89, 229402), (178, 114701), (2047, 9974), (4094, 4987)]