20626389

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19259}}^1$

素因数の和:19289

約数の個数: 24

約数和(自身を含む): 36054720

約数和(自身を除く): 15428331

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19259, 57777, 134813, 173331, 327403, 404439, 982209, 1213317, 2291821, 2946627, 6875463, 20626389]

約数ペア:

[(1, 20626389), (3, 6875463), (7, 2946627), (9, 2291821), (17, 1213317), (21, 982209), (51, 404439), (63, 327403), (119, 173331), (153, 134813), (357, 57777), (1071, 19259)]