21537918

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^1\times {\mathrm{11617}}^1$

素因数の和:11728

約数の個数: 24

約数和(自身を含む): 47122608

約数和(自身を除く): 25584690

約数列:

[1, 2, 3, 6, 9, 18, 103, 206, 309, 618, 927, 1854, 11617, 23234, 34851, 69702, 104553, 209106, 1196551, 2393102, 3589653, 7179306, 10768959, 21537918]

約数ペア:

[(1, 21537918), (2, 10768959), (3, 7179306), (6, 3589653), (9, 2393102), (18, 1196551), (103, 209106), (206, 104553), (309, 69702), (618, 34851), (927, 23234), (1854, 11617)]