20175651

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{809}}^1$

素因数の和:995

約数の個数: 24

約数和(自身を含む): 31084560

約数和(自身を除く): 10908909

約数列:

[1, 3, 9, 17, 51, 153, 163, 489, 809, 1467, 2427, 2771, 7281, 8313, 13753, 24939, 41259, 123777, 131867, 395601, 1186803, 2241739, 6725217, 20175651]

約数ペア:

[(1, 20175651), (3, 6725217), (9, 2241739), (17, 1186803), (51, 395601), (153, 131867), (163, 123777), (489, 41259), (809, 24939), (1467, 13753), (2427, 8313), (2771, 7281)]