157740129

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{21881}}^1$

素因数の和:21982

約数の個数: 20

約数和(自身を含む): 238294980

約数和(自身を除く): 80554851

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 21881, 65643, 196929, 590787, 1772361, 1947409, 5842227, 17526681, 52580043, 157740129]

約数ペア:

[(1, 157740129), (3, 52580043), (9, 17526681), (27, 5842227), (81, 1947409), (89, 1772361), (267, 590787), (801, 196929), (2403, 65643), (7209, 21881)]