20880236

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12953}}^1$

素因数の和:13001

約数の個数: 24

約数和(自身を含む): 40623744

約数和(自身を除く): 19743508

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12953, 25906, 51812, 168389, 336778, 401543, 673556, 803086, 1606172, 5220059, 10440118, 20880236]

約数ペア:

[(1, 20880236), (2, 10440118), (4, 5220059), (13, 1606172), (26, 803086), (31, 673556), (52, 401543), (62, 336778), (124, 168389), (403, 51812), (806, 25906), (1612, 12953)]