78553993

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{1229}}^1$

素因数の和:1656

約数の個数: 16

約数和(自身を含む): 93991680

約数和(自身を除く): 15437687

約数列:

[1, 7, 23, 161, 397, 1229, 2779, 8603, 9131, 28267, 63917, 197869, 487913, 3415391, 11221999, 78553993]

約数ペア:

[(1, 78553993), (7, 11221999), (23, 3415391), (161, 487913), (397, 197869), (1229, 63917), (2779, 28267), (8603, 9131)]