20493416

素因数分解:

$2^3\times {\mathrm{317}}^1\times {\mathrm{8081}}^1$

素因数の和:8404

約数の個数: 16

約数和(自身を含む): 38551140

約数和(自身を除く): 18057724

約数列:

[1, 2, 4, 8, 317, 634, 1268, 2536, 8081, 16162, 32324, 64648, 2561677, 5123354, 10246708, 20493416]

約数ペア:

[(1, 20493416), (2, 10246708), (4, 5123354), (8, 2561677), (317, 64648), (634, 32324), (1268, 16162), (2536, 8081)]