20351709

素因数分解:

$3^3\times 7^2\times {\mathrm{15383}}^1$

素因数の和:15406

約数の個数: 24

約数和(自身を含む): 35075520

約数和(自身を除く): 14723811

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 15383, 46149, 107681, 138447, 323043, 415341, 753767, 969129, 2261301, 2907387, 6783903, 20351709]

約数ペア:

[(1, 20351709), (3, 6783903), (7, 2907387), (9, 2261301), (21, 969129), (27, 753767), (49, 415341), (63, 323043), (147, 138447), (189, 107681), (441, 46149), (1323, 15383)]