20801859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{5281}}^1$

素因数の和:5398

約数の個数: 16

約数和(自身を含む): 30170784

約数和(自身を除く): 9368925

約数列:

[1, 3, 13, 39, 101, 303, 1313, 3939, 5281, 15843, 68653, 205959, 533381, 1600143, 6933953, 20801859]

約数ペア:

[(1, 20801859), (3, 6933953), (13, 1600143), (39, 533381), (101, 205959), (303, 68653), (1313, 15843), (3939, 5281)]