20385423

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1229}}^1$

素因数の和:1351

約数の個数: 24

約数和(自身を含む): 31340400

約数和(自身を除く): 10954977

約数列:

[1, 3, 9, 19, 57, 97, 171, 291, 873, 1229, 1843, 3687, 5529, 11061, 16587, 23351, 70053, 119213, 210159, 357639, 1072917, 2265047, 6795141, 20385423]

約数ペア:

[(1, 20385423), (3, 6795141), (9, 2265047), (19, 1072917), (57, 357639), (97, 210159), (171, 119213), (291, 70053), (873, 23351), (1229, 16587), (1843, 11061), (3687, 5529)]