21010906

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7393}}^1$

素因数の和:7438

約数の個数: 24

約数和(自身を含む): 37931220

約数和(自身を除く): 16920314

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 203, 406, 1421, 2842, 7393, 14786, 51751, 103502, 214397, 362257, 428794, 724514, 1500779, 3001558, 10505453, 21010906]

約数ペア:

[(1, 21010906), (2, 10505453), (7, 3001558), (14, 1500779), (29, 724514), (49, 428794), (58, 362257), (98, 214397), (203, 103502), (406, 51751), (1421, 14786), (2842, 7393)]