18741987

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8231}}^1$

素因数の和:8271

約数の個数: 24

約数和(自身を含む): 30820608

約数和(自身を除く): 12078621

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 207, 253, 759, 2277, 8231, 24693, 74079, 90541, 189313, 271623, 567939, 814869, 1703817, 2082443, 6247329, 18741987]

約数ペア:

[(1, 18741987), (3, 6247329), (9, 2082443), (11, 1703817), (23, 814869), (33, 567939), (69, 271623), (99, 189313), (207, 90541), (253, 74079), (759, 24693), (2277, 8231)]