68395821

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1\times {\mathrm{431}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 99294336

約数和(自身を除く): 30898515

約数列:

[1, 3, 13, 39, 169, 313, 431, 507, 939, 1293, 4069, 5603, 12207, 16809, 52897, 72839, 134903, 158691, 218517, 404709, 1753739, 5261217, 22798607, 68395821]

約数ペア:

[(1, 68395821), (3, 22798607), (13, 5261217), (39, 1753739), (169, 404709), (313, 218517), (431, 158691), (507, 134903), (939, 72839), (1293, 52897), (4069, 16809), (5603, 12207)]