142957719

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{137}}^1$

素因数の和:308

約数の個数: 36

約数和(自身を含む): 220145328

約数和(自身を除く): 77187609

約数列:

[1, 3, 9, 23, 69, 71, 137, 207, 213, 411, 639, 1233, 1633, 3151, 4899, 5041, 9453, 9727, 14697, 15123, 28359, 29181, 45369, 87543, 115943, 223721, 347829, 671163, 690617, 1043487, 2013489, 2071851, 6215553, 15884191, 47652573, 142957719]

約数ペア:

[(1, 142957719), (3, 47652573), (9, 15884191), (23, 6215553), (69, 2071851), (71, 2013489), (137, 1043487), (207, 690617), (213, 671163), (411, 347829), (639, 223721), (1233, 115943), (1633, 87543), (3151, 45369), (4899, 29181), (5041, 28359), (9453, 15123), (9727, 14697)]