20650413

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{2381}}^1$

素因数の和:2457

約数の個数: 24

約数和(自身を含む): 32585760

約数和(自身を除く): 11935347

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2381, 2891, 7143, 8673, 16667, 50001, 116669, 140479, 350007, 421437, 983353, 2950059, 6883471, 20650413]

約数ペア:

[(1, 20650413), (3, 6883471), (7, 2950059), (21, 983353), (49, 421437), (59, 350007), (147, 140479), (177, 116669), (413, 50001), (1239, 16667), (2381, 8673), (2891, 7143)]