206878497

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{997}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 324597504

約数和(自身を除く): 117719007

約数列:

[1, 3, 7, 21, 41, 123, 241, 287, 723, 861, 997, 1687, 2991, 5061, 6979, 9881, 20937, 29643, 40877, 69167, 122631, 207501, 240277, 286139, 720831, 858417, 1681939, 5045817, 9851357, 29554071, 68959499, 206878497]

約数ペア:

[(1, 206878497), (3, 68959499), (7, 29554071), (21, 9851357), (41, 5045817), (123, 1681939), (241, 858417), (287, 720831), (723, 286139), (861, 240277), (997, 207501), (1687, 122631), (2991, 69167), (5061, 40877), (6979, 29643), (9881, 20937)]