18911992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11311}}^1$

素因数の和:11347

約数の個数: 32

約数和(自身を含む): 40723200

約数和(自身を除く): 21811208

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 11311, 22622, 45244, 90488, 124421, 214909, 248842, 429818, 497684, 859636, 995368, 1719272, 2363999, 4727998, 9455996, 18911992]

約数ペア:

[(1, 18911992), (2, 9455996), (4, 4727998), (8, 2363999), (11, 1719272), (19, 995368), (22, 859636), (38, 497684), (44, 429818), (76, 248842), (88, 214909), (152, 124421), (209, 90488), (418, 45244), (836, 22622), (1672, 11311)]