19980345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17299}}^1$

素因数の和:17325

約数の個数: 32

約数和(自身を含む): 39859200

約数和(自身を除く): 19878855

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 17299, 51897, 86495, 121093, 190289, 259485, 363279, 570867, 605465, 951445, 1332023, 1816395, 2854335, 3996069, 6660115, 19980345]

約数ペア:

[(1, 19980345), (3, 6660115), (5, 3996069), (7, 2854335), (11, 1816395), (15, 1332023), (21, 951445), (33, 605465), (35, 570867), (55, 363279), (77, 259485), (105, 190289), (165, 121093), (231, 86495), (385, 51897), (1155, 17299)]