21267255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83401}}^1$

素因数の和:83426

約数の個数: 16

約数和(自身を含む): 36029664

約数和(自身を除く): 14762409

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 83401, 250203, 417005, 1251015, 1417817, 4253451, 7089085, 21267255]

約数ペア:

[(1, 21267255), (3, 7089085), (5, 4253451), (15, 1417817), (17, 1251015), (51, 417005), (85, 250203), (255, 83401)]