20421518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{3371}}^1$

素因数の和:3619

約数の個数: 16

約数和(自身を含む): 33140016

約数和(自身を除く): 12718498

約数列:

[1, 2, 13, 26, 233, 466, 3029, 3371, 6058, 6742, 43823, 87646, 785443, 1570886, 10210759, 20421518]

約数ペア:

[(1, 20421518), (2, 10210759), (13, 1570886), (26, 785443), (233, 87646), (466, 43823), (3029, 6742), (3371, 6058)]