20279079

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{4909}}^1$

素因数の和:4941

約数の個数: 24

約数和(自身を含む): 32170320

約数和(自身を除く): 11891241

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 4909, 14727, 44181, 83453, 132543, 250359, 397629, 751077, 1192887, 2253231, 6759693, 20279079]

約数ペア:

[(1, 20279079), (3, 6759693), (9, 2253231), (17, 1192887), (27, 751077), (51, 397629), (81, 250359), (153, 132543), (243, 83453), (459, 44181), (1377, 14727), (4131, 4909)]