161796771

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{68879}}^1$

素因数の和:68920

約数の個数: 20

約数和(自身を含む): 250034400

約数和(自身を除く): 88237629

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 68879, 206637, 619911, 1859733, 1997491, 5579199, 5992473, 17977419, 53932257, 161796771]

約数ペア:

[(1, 161796771), (3, 53932257), (9, 17977419), (27, 5992473), (29, 5579199), (81, 1997491), (87, 1859733), (261, 619911), (783, 206637), (2349, 68879)]