908019

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 36

約数和(自身を含む): 1600560

約数和(自身を除く): 692541

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 71, 87, 147, 203, 213, 261, 441, 497, 609, 639, 1421, 1491, 1827, 2059, 3479, 4263, 4473, 6177, 10437, 12789, 14413, 18531, 31311, 43239, 100891, 129717, 302673, 908019]

約数ペア:

[(1, 908019), (3, 302673), (7, 129717), (9, 100891), (21, 43239), (29, 31311), (49, 18531), (63, 14413), (71, 12789), (87, 10437), (147, 6177), (203, 4473), (213, 4263), (261, 3479), (441, 2059), (497, 1827), (609, 1491), (639, 1421)]