20371081857

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{51055343}}^1$

素因数の和:51055372

約数の個数: 16

約数和(自身を含む): 32675420160

約数和(自身を除く): 12304338303

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 51055343, 153166029, 357387401, 970051517, 1072162203, 2910154551, 6790360619, 20371081857]

約数ペア:

[(1, 20371081857), (3, 6790360619), (7, 2910154551), (19, 1072162203), (21, 970051517), (57, 357387401), (133, 153166029), (399, 51055343)]