19804983

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:895

約数の個数: 32

約数和(自身を含む): 31249152

約数和(自身を除く): 11444169

約数列:

[1, 3, 11, 17, 33, 43, 51, 129, 187, 473, 561, 731, 821, 1419, 2193, 2463, 8041, 9031, 13957, 24123, 27093, 35303, 41871, 105909, 153527, 388333, 460581, 600151, 1164999, 1800453, 6601661, 19804983]

約数ペア:

[(1, 19804983), (3, 6601661), (11, 1800453), (17, 1164999), (33, 600151), (43, 460581), (51, 388333), (129, 153527), (187, 105909), (473, 41871), (561, 35303), (731, 27093), (821, 24123), (1419, 13957), (2193, 9031), (2463, 8041)]