18504981

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 30820608

約数和(自身を除く): 12315627

約数列:

[1, 3, 9, 11, 33, 41, 47, 97, 99, 123, 141, 291, 369, 423, 451, 517, 873, 1067, 1353, 1551, 1927, 3201, 3977, 4059, 4559, 4653, 5781, 9603, 11931, 13677, 17343, 21197, 35793, 41031, 43747, 50149, 63591, 131241, 150447, 186919, 190773, 393723, 451341, 560757, 1682271, 2056109, 6168327, 18504981]

約数ペア:

[(1, 18504981), (3, 6168327), (9, 2056109), (11, 1682271), (33, 560757), (41, 451341), (47, 393723), (97, 190773), (99, 186919), (123, 150447), (141, 131241), (291, 63591), (369, 50149), (423, 43747), (451, 41031), (517, 35793), (873, 21197), (1067, 17343), (1353, 13677), (1551, 11931), (1927, 9603), (3201, 5781), (3977, 4653), (4059, 4559)]