21806710

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6967}}^1$

素因数の和:7287

約数の個数: 16

約数和(自身を含む): 39383136

約数和(自身を除く): 17576426

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6967, 13934, 34835, 69670, 2180671, 4361342, 10903355, 21806710]

約数ペア:

[(1, 21806710), (2, 10903355), (5, 4361342), (10, 2180671), (313, 69670), (626, 34835), (1565, 13934), (3130, 6967)]