18840826

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:849

約数の個数: 16

約数和(自身を含む): 28870920

約数和(自身を除く): 10030094

約数列:

[1, 2, 61, 122, 389, 397, 778, 794, 23729, 24217, 47458, 48434, 154433, 308866, 9420413, 18840826]

約数ペア:

[(1, 18840826), (2, 9420413), (61, 308866), (122, 154433), (389, 48434), (397, 47458), (778, 24217), (794, 23729)]