15167215

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2047

約数の個数: 24

約数和(自身を含む): 21866112

約数和(自身を除く): 6698897

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 1997, 7595, 9985, 13979, 61907, 69895, 97853, 309535, 433349, 489265, 2166745, 3033443, 15167215]

約数ペア:

[(1, 15167215), (5, 3033443), (7, 2166745), (31, 489265), (35, 433349), (49, 309535), (155, 97853), (217, 69895), (245, 61907), (1085, 13979), (1519, 9985), (1997, 7595)]