28399491

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{5233}}^1$

素因数の和:5312

約数の個数: 20

約数和(自身を含む): 43065352

約数和(自身を除く): 14665861

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5233, 5427, 15699, 47097, 141291, 350611, 423873, 1051833, 3155499, 9466497, 28399491]

約数ペア:

[(1, 28399491), (3, 9466497), (9, 3155499), (27, 1051833), (67, 423873), (81, 350611), (201, 141291), (603, 47097), (1809, 15699), (5233, 5427)]