20738709

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{5273}}^1$

素因数の和:5321

約数の個数: 24

約数和(自身を含む): 32909760

約数和(自身を除く): 12171051

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 5273, 15819, 47457, 100187, 121279, 300561, 363837, 901683, 1091511, 2304301, 6912903, 20738709]

約数ペア:

[(1, 20738709), (3, 6912903), (9, 2304301), (19, 1091511), (23, 901683), (57, 363837), (69, 300561), (171, 121279), (207, 100187), (437, 47457), (1311, 15819), (3933, 5273)]