19923310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2551}}^1$

素因数の和:2640

約数の個数: 32

約数和(自身を含む): 39688704

約数和(自身を除く): 19765394

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2551, 3905, 5102, 7810, 12755, 25510, 28061, 56122, 140305, 181121, 280610, 362242, 905605, 1811210, 1992331, 3984662, 9961655, 19923310]

約数ペア:

[(1, 19923310), (2, 9961655), (5, 3984662), (10, 1992331), (11, 1811210), (22, 905605), (55, 362242), (71, 280610), (110, 181121), (142, 140305), (355, 56122), (710, 28061), (781, 25510), (1562, 12755), (2551, 7810), (3905, 5102)]