21138614

素因数分解:

$2^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{2887}}^1$

素因数の和:3419

約数の個数: 16

約数和(自身を含む): 36319488

約数和(自身を除く): 15180874

約数列:

[1, 2, 7, 14, 523, 1046, 2887, 3661, 5774, 7322, 20209, 40418, 1509901, 3019802, 10569307, 21138614]

約数ペア:

[(1, 21138614), (2, 10569307), (7, 3019802), (14, 1509901), (523, 40418), (1046, 20209), (2887, 7322), (3661, 5774)]