19842155

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{641}}^1$

素因数の和:838

約数の個数: 16

約数和(自身を含む): 24591168

約数和(自身を除く): 4749013

約数列:

[1, 5, 41, 151, 205, 641, 755, 3205, 6191, 26281, 30955, 96791, 131405, 483955, 3968431, 19842155]

約数ペア:

[(1, 19842155), (5, 3968431), (41, 483955), (151, 131405), (205, 96791), (641, 30955), (755, 26281), (3205, 6191)]