2728229

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 3338880

約数和(自身を除く): 610651

約数列:

[1, 7, 19, 73, 133, 281, 511, 1387, 1967, 5339, 9709, 20513, 37373, 143591, 389747, 2728229]

約数ペア:

[(1, 2728229), (7, 389747), (19, 143591), (73, 37373), (133, 20513), (281, 9709), (511, 5339), (1387, 1967)]