21559208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{599}}^1$

素因数の和:1025

約数の個数: 32

約数和(自身を含む): 44280000

約数和(自身を除く): 22720792

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 409, 599, 818, 1198, 1636, 2396, 3272, 4499, 4792, 6589, 8998, 13178, 17996, 26356, 35992, 52712, 244991, 489982, 979964, 1959928, 2694901, 5389802, 10779604, 21559208]

約数ペア:

[(1, 21559208), (2, 10779604), (4, 5389802), (8, 2694901), (11, 1959928), (22, 979964), (44, 489982), (88, 244991), (409, 52712), (599, 35992), (818, 26356), (1198, 17996), (1636, 13178), (2396, 8998), (3272, 6589), (4499, 4792)]