18753931

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{103}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 23412480

約数和(自身を除く): 4658549

約数列:

[1, 7, 19, 37, 103, 133, 259, 703, 721, 1369, 1957, 3811, 4921, 9583, 13699, 26011, 26677, 72409, 141007, 182077, 506863, 987049, 2679133, 18753931]

約数ペア:

[(1, 18753931), (7, 2679133), (19, 987049), (37, 506863), (103, 182077), (133, 141007), (259, 72409), (703, 26677), (721, 26011), (1369, 13699), (1957, 9583), (3811, 4921)]