208539611

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 260290560

約数和(自身を除く): 51750949

約数列:

[1, 7, 19, 47, 73, 133, 329, 457, 511, 893, 1387, 3199, 3431, 6251, 8683, 9709, 21479, 24017, 33361, 60781, 65189, 150353, 233527, 408101, 456323, 633859, 1567967, 2856707, 4437013, 10975769, 29791373, 208539611]

約数ペア:

[(1, 208539611), (7, 29791373), (19, 10975769), (47, 4437013), (73, 2856707), (133, 1567967), (329, 633859), (457, 456323), (511, 408101), (893, 233527), (1387, 150353), (3199, 65189), (3431, 60781), (6251, 33361), (8683, 24017), (9709, 21479)]