21805218

素因数分解:

$2^1\times 3^2\times {\mathrm{569}}^1\times {\mathrm{2129}}^1$

素因数の和:2706

約数の個数: 24

約数和(自身を含む): 47349900

約数和(自身を除く): 25544682

約数列:

[1, 2, 3, 6, 9, 18, 569, 1138, 1707, 2129, 3414, 4258, 5121, 6387, 10242, 12774, 19161, 38322, 1211401, 2422802, 3634203, 7268406, 10902609, 21805218]

約数ペア:

[(1, 21805218), (2, 10902609), (3, 7268406), (6, 3634203), (9, 2422802), (18, 1211401), (569, 38322), (1138, 19161), (1707, 12774), (2129, 10242), (3414, 6387), (4258, 5121)]