21217582

素因数分解:

$2^1\times {\mathrm{41}}^2\times {\mathrm{6311}}^1$

素因数の和:6395

約数の個数: 12

約数和(自身を含む): 32626728

約数和(自身を除く): 11409146

約数列:

[1, 2, 41, 82, 1681, 3362, 6311, 12622, 258751, 517502, 10608791, 21217582]

約数ペア:

[(1, 21217582), (2, 10608791), (41, 517502), (82, 258751), (1681, 12622), (3362, 6311)]