21804578

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{3449}}^1$

素因数の和:3589

約数の個数: 16

約数和(自身を含む): 34155000

約数和(自身を除く): 12350422

約数列:

[1, 2, 29, 58, 109, 218, 3161, 3449, 6322, 6898, 100021, 200042, 375941, 751882, 10902289, 21804578]

約数ペア:

[(1, 21804578), (2, 10902289), (29, 751882), (58, 375941), (109, 200042), (218, 100021), (3161, 6898), (3449, 6322)]