20721068

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{2851}}^1$

素因数の和:2957

約数の個数: 24

約数和(自身を含む): 38330880

約数和(自身を除く): 17609812

約数列:

[1, 2, 4, 23, 46, 79, 92, 158, 316, 1817, 2851, 3634, 5702, 7268, 11404, 65573, 131146, 225229, 262292, 450458, 900916, 5180267, 10360534, 20721068]

約数ペア:

[(1, 20721068), (2, 10360534), (4, 5180267), (23, 900916), (46, 450458), (79, 262292), (92, 225229), (158, 131146), (316, 65573), (1817, 11404), (2851, 7268), (3634, 5702)]