18719217

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8221}}^1$

素因数の和:8261

約数の個数: 24

約数和(自身を含む): 30783168

約数和(自身を除く): 12063951

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 207, 253, 759, 2277, 8221, 24663, 73989, 90431, 189083, 271293, 567249, 813879, 1701747, 2079913, 6239739, 18719217]

約数ペア:

[(1, 18719217), (3, 6239739), (9, 2079913), (11, 1701747), (23, 813879), (33, 567249), (69, 271293), (99, 189083), (207, 90431), (253, 73989), (759, 24663), (2277, 8221)]