71665881

素因数分解:

$3^1\times 7^2\times {\mathrm{499}}^1\times {\mathrm{977}}^1$

素因数の和:1493

約数の個数: 24

約数和(自身を含む): 111492000

約数和(自身を除く): 39826119

約数列:

[1, 3, 7, 21, 49, 147, 499, 977, 1497, 2931, 3493, 6839, 10479, 20517, 24451, 47873, 73353, 143619, 487523, 1462569, 3412661, 10237983, 23888627, 71665881]

約数ペア:

[(1, 71665881), (3, 23888627), (7, 10237983), (21, 3412661), (49, 1462569), (147, 487523), (499, 143619), (977, 73353), (1497, 47873), (2931, 24451), (3493, 20517), (6839, 10479)]