21063539

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{859}}^1$

素因数の和:1010

約数の個数: 16

約数和(自身を含む): 25098240

約数和(自身を除く): 4034701

約数列:

[1, 7, 31, 113, 217, 791, 859, 3503, 6013, 24521, 26629, 97067, 186403, 679469, 3009077, 21063539]

約数ペア:

[(1, 21063539), (7, 3009077), (31, 679469), (113, 186403), (217, 97067), (791, 26629), (859, 24521), (3503, 6013)]