128538423

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{2549}}^1$

素因数の和:2999

約数の個数: 24

約数和(自身を含む): 200491200

約数和(自身を除く): 71952777

約数列:

[1, 3, 9, 13, 39, 117, 431, 1293, 2549, 3879, 5603, 7647, 16809, 22941, 33137, 50427, 99411, 298233, 1098619, 3295857, 9887571, 14282047, 42846141, 128538423]

約数ペア:

[(1, 128538423), (3, 42846141), (9, 14282047), (13, 9887571), (39, 3295857), (117, 1098619), (431, 298233), (1293, 99411), (2549, 50427), (3879, 33137), (5603, 22941), (7647, 16809)]