217413

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:66

約数の個数: 36

約数和(自身を含む): 400140

約数和(自身を除く): 182727

約数列:

[1, 3, 7, 9, 17, 21, 29, 49, 51, 63, 87, 119, 147, 153, 203, 261, 357, 441, 493, 609, 833, 1071, 1421, 1479, 1827, 2499, 3451, 4263, 4437, 7497, 10353, 12789, 24157, 31059, 72471, 217413]

約数ペア:

[(1, 217413), (3, 72471), (7, 31059), (9, 24157), (17, 12789), (21, 10353), (29, 7497), (49, 4437), (51, 4263), (63, 3451), (87, 2499), (119, 1827), (147, 1479), (153, 1421), (203, 1071), (261, 833), (357, 609), (441, 493)]