28720701

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{6473}}^1$

素因数の和:6525

約数の個数: 24

約数和(自身を含む): 45447480

約数和(自身を除く): 16726779

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4437, 6473, 19419, 58257, 110041, 187717, 330123, 563151, 990369, 1689453, 3191189, 9573567, 28720701]

約数ペア:

[(1, 28720701), (3, 9573567), (9, 3191189), (17, 1689453), (29, 990369), (51, 563151), (87, 330123), (153, 187717), (261, 110041), (493, 58257), (1479, 19419), (4437, 6473)]