19879215

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{42751}}^1$

素因数の和:42790

約数の個数: 16

約数和(自身を含む): 32833536

約数和(自身を除く): 12954321

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 42751, 128253, 213755, 641265, 1325281, 3975843, 6626405, 19879215]

約数ペア:

[(1, 19879215), (3, 6626405), (5, 3975843), (15, 1325281), (31, 641265), (93, 213755), (155, 128253), (465, 42751)]