721884231

素因数分解:

$3^6\times {\mathrm{990239}}^1$

素因数の和:990257

約数の個数: 14

約数和(自身を含む): 1082332320

約数和(自身を除く): 360448089

約数列:

[1, 3, 9, 27, 81, 243, 729, 990239, 2970717, 8912151, 26736453, 80209359, 240628077, 721884231]

約数ペア:

[(1, 721884231), (3, 240628077), (9, 80209359), (27, 26736453), (81, 8912151), (243, 2970717), (729, 990239)]