21571020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119839}}^1$

素因数の和:119854

約数の個数: 36

約数和(自身を含む): 65432640

約数和(自身を除く): 43861620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119839, 239678, 359517, 479356, 599195, 719034, 1078551, 1198390, 1438068, 1797585, 2157102, 2396780, 3595170, 4314204, 5392755, 7190340, 10785510, 21571020]

約数ペア:

[(1, 21571020), (2, 10785510), (3, 7190340), (4, 5392755), (5, 4314204), (6, 3595170), (9, 2396780), (10, 2157102), (12, 1797585), (15, 1438068), (18, 1198390), (20, 1078551), (30, 719034), (36, 599195), (45, 479356), (60, 359517), (90, 239678), (180, 119839)]