208067139

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{39791}}^1$

素因数の和:39887

約数の個数: 24

約数和(自身を含む): 347622912

約数和(自身を除く): 139555773

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 39791, 119373, 278537, 358119, 835611, 2506833, 3302653, 9907959, 23118571, 29723877, 69355713, 208067139]

約数ペア:

[(1, 208067139), (3, 69355713), (7, 29723877), (9, 23118571), (21, 9907959), (63, 3302653), (83, 2506833), (249, 835611), (581, 358119), (747, 278537), (1743, 119373), (5229, 39791)]