20902827

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13477}}^1$

素因数の和:13538

約数の個数: 16

約数和(自身を含む): 31053312

約数和(自身を除く): 10150485

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13477, 40431, 148247, 444741, 633419, 1900257, 6967609, 20902827]

約数ペア:

[(1, 20902827), (3, 6967609), (11, 1900257), (33, 633419), (47, 444741), (141, 148247), (517, 40431), (1551, 13477)]