15666291

素因数分解:

$3^4\times {\mathrm{269}}^1\times {\mathrm{719}}^1$

素因数の和:1000

約数の個数: 20

約数和(自身を含む): 23522400

約数和(自身を除く): 7856109

約数列:

[1, 3, 9, 27, 81, 269, 719, 807, 2157, 2421, 6471, 7263, 19413, 21789, 58239, 193411, 580233, 1740699, 5222097, 15666291]

約数ペア:

[(1, 15666291), (3, 5222097), (9, 1740699), (27, 580233), (81, 193411), (269, 58239), (719, 21789), (807, 19413), (2157, 7263), (2421, 6471)]