19612915

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 27941760

約数和(自身を除く): 8328845

約数列:

[1, 5, 7, 35, 53, 97, 109, 265, 371, 485, 545, 679, 763, 1855, 3395, 3815, 5141, 5777, 10573, 25705, 28885, 35987, 40439, 52865, 74011, 179935, 202195, 370055, 560369, 2801845, 3922583, 19612915]

約数ペア:

[(1, 19612915), (5, 3922583), (7, 2801845), (35, 560369), (53, 370055), (97, 202195), (109, 179935), (265, 74011), (371, 52865), (485, 40439), (545, 35987), (679, 28885), (763, 25705), (1855, 10573), (3395, 5777), (3815, 5141)]