81405927

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{223}}^1\times {\mathrm{863}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 120766464

約数和(自身を除く): 39360537

約数列:

[1, 3, 9, 47, 141, 223, 423, 669, 863, 2007, 2589, 7767, 10481, 31443, 40561, 94329, 121683, 192449, 365049, 577347, 1732041, 9045103, 27135309, 81405927]

約数ペア:

[(1, 81405927), (3, 27135309), (9, 9045103), (47, 1732041), (141, 577347), (223, 365049), (423, 192449), (669, 121683), (863, 94329), (2007, 40561), (2589, 31443), (7767, 10481)]