991113981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2310289}}^1$

素因数の和:2310316

約数の個数: 16

約数和(自身を含む): 1552514880

約数和(自身を除く): 561400899

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 2310289, 6930867, 25413179, 30033757, 76239537, 90101271, 330371327, 991113981]

約数ペア:

[(1, 991113981), (3, 330371327), (11, 90101271), (13, 76239537), (33, 30033757), (39, 25413179), (143, 6930867), (429, 2310289)]