20704737

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{809}}^1$

素因数の和:1280

約数の個数: 16

約数和(自身を含む): 29160000

約数和(自身を除く): 8455263

約数列:

[1, 3, 19, 57, 449, 809, 1347, 2427, 8531, 15371, 25593, 46113, 363241, 1089723, 6901579, 20704737]

約数ペア:

[(1, 20704737), (3, 6901579), (19, 1089723), (57, 363241), (449, 46113), (809, 25593), (1347, 15371), (2427, 8531)]