28356391

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 35012736

約数和(自身を除く): 6656345

約数列:

[1, 7, 17, 107, 119, 131, 289, 749, 917, 1819, 2023, 2227, 12733, 14017, 15589, 30923, 37859, 98119, 216461, 238289, 265013, 1668023, 4050913, 28356391]

約数ペア:

[(1, 28356391), (7, 4050913), (17, 1668023), (107, 265013), (119, 238289), (131, 216461), (289, 98119), (749, 37859), (917, 30923), (1819, 15589), (2023, 14017), (2227, 12733)]