81869193

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{9349}}^1$

素因数の和:9501

約数の個数: 24

約数和(自身を含む): 136136000

約数和(自身を除く): 54266807

約数列:

[1, 3, 7, 9, 21, 63, 139, 417, 973, 1251, 2919, 8757, 9349, 28047, 65443, 84141, 196329, 588987, 1299511, 3898533, 9096577, 11695599, 27289731, 81869193]

約数ペア:

[(1, 81869193), (3, 27289731), (7, 11695599), (9, 9096577), (21, 3898533), (63, 1299511), (139, 588987), (417, 196329), (973, 84141), (1251, 65443), (2919, 28047), (8757, 9349)]