21999670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28571}}^1$

素因数の和:28596

約数の個数: 32

約数和(自身を含む): 49372416

約数和(自身を除く): 27372746

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28571, 57142, 142855, 199997, 285710, 314281, 399994, 628562, 999985, 1571405, 1999970, 2199967, 3142810, 4399934, 10999835, 21999670]

約数ペア:

[(1, 21999670), (2, 10999835), (5, 4399934), (7, 3142810), (10, 2199967), (11, 1999970), (14, 1571405), (22, 999985), (35, 628562), (55, 399994), (70, 314281), (77, 285710), (110, 199997), (154, 142855), (385, 57142), (770, 28571)]