21063742

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79187}}^1$

素因数の和:79215

約数の個数: 16

約数和(自身を含む): 38010240

約数和(自身を除く): 16946498

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 79187, 158374, 554309, 1108618, 1504553, 3009106, 10531871, 21063742]

約数ペア:

[(1, 21063742), (2, 10531871), (7, 3009106), (14, 1504553), (19, 1108618), (38, 554309), (133, 158374), (266, 79187)]