388519621

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{20117}}^1$

素因数の和:20244

約数の個数: 16

約数和(自身を含む): 463518720

約数和(自身を除く): 74999099

約数列:

[1, 7, 31, 89, 217, 623, 2759, 19313, 20117, 140819, 623627, 1790413, 4365389, 12532891, 55502803, 388519621]

約数ペア:

[(1, 388519621), (7, 55502803), (31, 12532891), (89, 4365389), (217, 1790413), (623, 623627), (2759, 140819), (19313, 20117)]