2149179981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{209533}}^1$

素因数の和:209812

約数の個数: 16

約数和(自身を含む): 3097750656

約数和(自身を除く): 948570675

約数列:

[1, 3, 13, 39, 263, 789, 3419, 10257, 209533, 628599, 2723929, 8171787, 55107179, 165321537, 716393327, 2149179981]

約数ペア:

[(1, 2149179981), (3, 716393327), (13, 165321537), (39, 55107179), (263, 8171787), (789, 2723929), (3419, 628599), (10257, 209533)]