1221268321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{789443}}^1$

素因数の和:789480

約数の個数: 16

約数和(自身を含む): 1591519104

約数和(自身を除く): 370250783

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 789443, 5526101, 10262759, 13420531, 71839313, 93943717, 174466903, 1221268321]

約数ペア:

[(1, 1221268321), (7, 174466903), (13, 93943717), (17, 71839313), (91, 13420531), (119, 10262759), (221, 5526101), (1547, 789443)]