20940051

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{587}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 11573997

約数列:

[1, 3, 11, 23, 33, 47, 69, 141, 253, 517, 587, 759, 1081, 1551, 1761, 3243, 6457, 11891, 13501, 19371, 27589, 35673, 40503, 82767, 148511, 303479, 445533, 634547, 910437, 1903641, 6980017, 20940051]

約数ペア:

[(1, 20940051), (3, 6980017), (11, 1903641), (23, 910437), (33, 634547), (47, 445533), (69, 303479), (141, 148511), (253, 82767), (517, 40503), (587, 35673), (759, 27589), (1081, 19371), (1551, 13501), (1761, 11891), (3243, 6457)]