20120868

素因数分解:

$2^2\times 3^2\times {\mathrm{558913}}^1$

素因数の和:558923

約数の個数: 18

約数和(自身を含む): 50861174

約数和(自身を除く): 30740306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 558913, 1117826, 1676739, 2235652, 3353478, 5030217, 6706956, 10060434, 20120868]

約数ペア:

[(1, 20120868), (2, 10060434), (3, 6706956), (4, 5030217), (6, 3353478), (9, 2235652), (12, 1676739), (18, 1117826), (36, 558913)]