157047009

素因数分解:

$3^1\times 7^4\times {\mathrm{21803}}^1$

素因数の和:21834

約数の個数: 20

約数和(自身を含む): 244292016

約数和(自身を除く): 87245007

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 21803, 65409, 152621, 457863, 1068347, 3205041, 7478429, 22435287, 52349003, 157047009]

約数ペア:

[(1, 157047009), (3, 52349003), (7, 22435287), (21, 7478429), (49, 3205041), (147, 1068347), (343, 457863), (1029, 152621), (2401, 65409), (7203, 21803)]