20213140

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19069}}^1$

素因数の和:19131

約数の個数: 24

約数和(自身を含む): 43250760

約数和(自身を除く): 23037620

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19069, 38138, 76276, 95345, 190690, 381380, 1010657, 2021314, 4042628, 5053285, 10106570, 20213140]

約数ペア:

[(1, 20213140), (2, 10106570), (4, 5053285), (5, 4042628), (10, 2021314), (20, 1010657), (53, 381380), (106, 190690), (212, 95345), (265, 76276), (530, 38138), (1060, 19069)]