28657284

素因数分解:

$2^2\times 3^1\times {\mathrm{223}}^1\times {\mathrm{10709}}^1$

素因数の和:10939

約数の個数: 24

約数和(自身を含む): 67173120

約数和(自身を除く): 38515836

約数列:

[1, 2, 3, 4, 6, 12, 223, 446, 669, 892, 1338, 2676, 10709, 21418, 32127, 42836, 64254, 128508, 2388107, 4776214, 7164321, 9552428, 14328642, 28657284]

約数ペア:

[(1, 28657284), (2, 14328642), (3, 9552428), (4, 7164321), (6, 4776214), (12, 2388107), (223, 128508), (446, 64254), (669, 42836), (892, 32127), (1338, 21418), (2676, 10709)]