21063651

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9931}}^1$

素因数の和:10042

約数の個数: 16

約数和(自身を含む): 32418048

約数和(自身を除く): 11354397

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 9931, 29793, 69517, 208551, 1003031, 3009093, 7021217, 21063651]

約数ペア:

[(1, 21063651), (3, 7021217), (7, 3009093), (21, 1003031), (101, 208551), (303, 69517), (707, 29793), (2121, 9931)]