20681367

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3049}}^1$

素因数の和:3095

約数の個数: 32

約数和(自身を含む): 35136000

約数和(自身を除く): 14454633

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 3049, 6783, 9147, 21343, 51833, 57931, 64029, 155499, 173793, 362831, 405517, 984827, 1088493, 1216551, 2954481, 6893789, 20681367]

約数ペア:

[(1, 20681367), (3, 6893789), (7, 2954481), (17, 1216551), (19, 1088493), (21, 984827), (51, 405517), (57, 362831), (119, 173793), (133, 155499), (323, 64029), (357, 57931), (399, 51833), (969, 21343), (2261, 9147), (3049, 6783)]