21747386

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{523}}^1\times {\mathrm{1223}}^1$

素因数の和:1765

約数の個数: 16

約数和(自身を含む): 34634304

約数和(自身を除く): 12886918

約数列:

[1, 2, 17, 34, 523, 1046, 1223, 2446, 8891, 17782, 20791, 41582, 639629, 1279258, 10873693, 21747386]

約数ペア:

[(1, 21747386), (2, 10873693), (17, 1279258), (34, 639629), (523, 41582), (1046, 20791), (1223, 17782), (2446, 8891)]