80856909

素因数分解:

$3^2\times 7^2\times {\mathrm{183349}}^1$

素因数の和:183369

約数の個数: 18

約数和(自身を含む): 135862350

約数和(自身を除く): 55005441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 183349, 550047, 1283443, 1650141, 3850329, 8984101, 11550987, 26952303, 80856909]

約数ペア:

[(1, 80856909), (3, 26952303), (7, 11550987), (9, 8984101), (21, 3850329), (49, 1650141), (63, 1283443), (147, 550047), (441, 183349)]