20121118

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{2141}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 31256064

約数和(自身を除く): 11134946

約数列:

[1, 2, 37, 74, 127, 254, 2141, 4282, 4699, 9398, 79217, 158434, 271907, 543814, 10060559, 20121118]

約数ペア:

[(1, 20121118), (2, 10060559), (37, 543814), (74, 271907), (127, 158434), (254, 79217), (2141, 9398), (4282, 4699)]