20638956

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{10177}}^1$

素因数の和:10210

約数の個数: 36

約数和(自身を含む): 52152072

約数和(自身を除く): 31513116

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 338, 507, 676, 1014, 2028, 10177, 20354, 30531, 40708, 61062, 122124, 132301, 264602, 396903, 529204, 793806, 1587612, 1719913, 3439826, 5159739, 6879652, 10319478, 20638956]

約数ペア:

[(1, 20638956), (2, 10319478), (3, 6879652), (4, 5159739), (6, 3439826), (12, 1719913), (13, 1587612), (26, 793806), (39, 529204), (52, 396903), (78, 264602), (156, 132301), (169, 122124), (338, 61062), (507, 40708), (676, 30531), (1014, 20354), (2028, 10177)]