78220121

素因数分解:

$7^3\times {\mathrm{97}}^1\times {\mathrm{2351}}^1$

素因数の和:2469

約数の個数: 16

約数和(自身を含む): 92198400

約数和(自身を除く): 13978279

約数列:

[1, 7, 49, 97, 343, 679, 2351, 4753, 16457, 33271, 115199, 228047, 806393, 1596329, 11174303, 78220121]

約数ペア:

[(1, 78220121), (7, 11174303), (49, 1596329), (97, 806393), (343, 228047), (679, 115199), (2351, 33271), (4753, 16457)]