20457678

素因数分解:

$2^1\times 3^1\times {\mathrm{821}}^1\times {\mathrm{4153}}^1$

素因数の和:4979

約数の個数: 16

約数和(自身を含む): 40975056

約数和(自身を除く): 20517378

約数列:

[1, 2, 3, 6, 821, 1642, 2463, 4153, 4926, 8306, 12459, 24918, 3409613, 6819226, 10228839, 20457678]

約数ペア:

[(1, 20457678), (2, 10228839), (3, 6819226), (6, 3409613), (821, 24918), (1642, 12459), (2463, 8306), (4153, 4926)]