20744087

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 26914944

約数和(自身を除く): 6170857

約数列:

[1, 7, 13, 37, 61, 91, 101, 259, 427, 481, 707, 793, 1313, 2257, 3367, 3737, 5551, 6161, 9191, 15799, 26159, 29341, 43127, 48581, 80093, 205387, 227957, 340067, 560651, 1595699, 2963441, 20744087]

約数ペア:

[(1, 20744087), (7, 2963441), (13, 1595699), (37, 560651), (61, 340067), (91, 227957), (101, 205387), (259, 80093), (427, 48581), (481, 43127), (707, 29341), (793, 26159), (1313, 15799), (2257, 9191), (3367, 6161), (3737, 5551)]