20649405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{196661}}^1$

素因数の和:196676

約数の個数: 16

約数和(自身を含む): 37759104

約数和(自身を除く): 17109699

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 196661, 589983, 983305, 1376627, 2949915, 4129881, 6883135, 20649405]

約数ペア:

[(1, 20649405), (3, 6883135), (5, 4129881), (7, 2949915), (15, 1376627), (21, 983305), (35, 589983), (105, 196661)]