12642539

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:339

約数の個数: 24

約数和(自身を含む): 16087680

約数和(自身を除く): 3445141

約数列:

[1, 7, 13, 49, 89, 91, 223, 623, 637, 1157, 1561, 2899, 4361, 8099, 10927, 19847, 20293, 56693, 138929, 142051, 258011, 972503, 1806077, 12642539]

約数ペア:

[(1, 12642539), (7, 1806077), (13, 972503), (49, 258011), (89, 142051), (91, 138929), (223, 56693), (623, 20293), (637, 19847), (1157, 10927), (1561, 8099), (2899, 4361)]