209138139

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{8713}}^1$

素因数の和:8856

約数の個数: 32

約数和(自身を含む): 356925440

約数和(自身を除く): 147787301

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 889, 1143, 2667, 3429, 8001, 8713, 24003, 26139, 60991, 78417, 182973, 235251, 548919, 1106551, 1646757, 3319653, 7745857, 9958959, 23237571, 29876877, 69712713, 209138139]

約数ペア:

[(1, 209138139), (3, 69712713), (7, 29876877), (9, 23237571), (21, 9958959), (27, 7745857), (63, 3319653), (127, 1646757), (189, 1106551), (381, 548919), (889, 235251), (1143, 182973), (2667, 78417), (3429, 60991), (8001, 26139), (8713, 24003)]