21083132

素因数分解:

$2^2\times 7^2\times {\mathrm{263}}^1\times {\mathrm{409}}^1$

素因数の和:690

約数の個数: 36

約数和(自身を含む): 43187760

約数和(自身を除く): 22104628

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 263, 409, 526, 818, 1052, 1636, 1841, 2863, 3682, 5726, 7364, 11452, 12887, 20041, 25774, 40082, 51548, 80164, 107567, 215134, 430268, 752969, 1505938, 3011876, 5270783, 10541566, 21083132]

約数ペア:

[(1, 21083132), (2, 10541566), (4, 5270783), (7, 3011876), (14, 1505938), (28, 752969), (49, 430268), (98, 215134), (196, 107567), (263, 80164), (409, 51548), (526, 40082), (818, 25774), (1052, 20041), (1636, 12887), (1841, 11452), (2863, 7364), (3682, 5726)]