66921281

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{5227}}^1$

素因数の和:5324

約数の個数: 16

約数和(自身を含む): 80302080

約数和(自身を除く): 13380799

約数列:

[1, 7, 31, 59, 217, 413, 1829, 5227, 12803, 36589, 162037, 308393, 1134259, 2158751, 9560183, 66921281]

約数ペア:

[(1, 66921281), (7, 9560183), (31, 2158751), (59, 1134259), (217, 308393), (413, 162037), (1829, 36589), (5227, 12803)]