207847521

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{39749}}^1$

素因数の和:39845

約数の個数: 24

約数和(自身を含む): 347256000

約数和(自身を除く): 139408479

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 39749, 119247, 278243, 357741, 834729, 2504187, 3299167, 9897501, 23094169, 29692503, 69282507, 207847521]

約数ペア:

[(1, 207847521), (3, 69282507), (7, 29692503), (9, 23094169), (21, 9897501), (63, 3299167), (83, 2504187), (249, 834729), (581, 357741), (747, 278243), (1743, 119247), (5229, 39749)]