21942591

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17971}}^1$

素因数の和:18022

約数の個数: 16

約数和(自身を含む): 32780928

約数和(自身を除く): 10838337

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17971, 53913, 197681, 593043, 664927, 1994781, 7314197, 21942591]

約数ペア:

[(1, 21942591), (3, 7314197), (11, 1994781), (33, 664927), (37, 593043), (111, 197681), (407, 53913), (1221, 17971)]