388731681

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{8369}}^1$

素因数の和:8785

約数の個数: 24

約数和(自身を含む): 606289320

約数和(自身を除く): 217557639

約数列:

[1, 3, 9, 13, 39, 117, 397, 1191, 3573, 5161, 8369, 15483, 25107, 46449, 75321, 108797, 326391, 979173, 3322493, 9967479, 29902437, 43192409, 129577227, 388731681]

約数ペア:

[(1, 388731681), (3, 129577227), (9, 43192409), (13, 29902437), (39, 9967479), (117, 3322493), (397, 979173), (1191, 326391), (3573, 108797), (5161, 75321), (8369, 46449), (15483, 25107)]