279834639

素因数分解:

$3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{17791}}^1$

素因数の和:17915

約数の個数: 24

約数和(自身を含む): 438110208

約数和(自身を除く): 158275569

約数列:

[1, 3, 7, 21, 49, 107, 147, 321, 749, 2247, 5243, 15729, 17791, 53373, 124537, 373611, 871759, 1903637, 2615277, 5710911, 13325459, 39976377, 93278213, 279834639]

約数ペア:

[(1, 279834639), (3, 93278213), (7, 39976377), (21, 13325459), (49, 5710911), (107, 2615277), (147, 1903637), (321, 871759), (749, 373611), (2247, 124537), (5243, 53373), (15729, 17791)]