71378253

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{21493}}^1$

素因数の和:21546

約数の個数: 20

約数和(自身を含む): 109232508

約数和(自身を除く): 37854255

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 21493, 64479, 193437, 580311, 881213, 1740933, 2643639, 7930917, 23792751, 71378253]

約数ペア:

[(1, 71378253), (3, 23792751), (9, 7930917), (27, 2643639), (41, 1740933), (81, 881213), (123, 580311), (369, 193437), (1107, 64479), (3321, 21493)]