21166615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{1097}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 27037152

約数和(自身を除く): 5870537

約数列:

[1, 5, 17, 85, 227, 1097, 1135, 3859, 5485, 18649, 19295, 93245, 249019, 1245095, 4233323, 21166615]

約数ペア:

[(1, 21166615), (5, 4233323), (17, 1245095), (85, 249019), (227, 93245), (1097, 19295), (1135, 18649), (3859, 5485)]