21131848094

素因数分解:

$2^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1978267}}^1$

素因数の和:1978392

約数の個数: 24

約数和(自身を含む): 37211221080

約数和(自身を除く): 16079372986

約数列:

[1, 2, 7, 14, 49, 98, 109, 218, 763, 1526, 5341, 10682, 1978267, 3956534, 13847869, 27695738, 96935083, 193870166, 215631103, 431262206, 1509417721, 3018835442, 10565924047, 21131848094]

約数ペア:

[(1, 21131848094), (2, 10565924047), (7, 3018835442), (14, 1509417721), (49, 431262206), (98, 215631103), (109, 193870166), (218, 96935083), (763, 27695738), (1526, 13847869), (5341, 3956534), (10682, 1978267)]