18939778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1409}}^1$

素因数の和:1482

約数の個数: 32

約数和(自身を含む): 34110720

約数和(自身を除く): 15170942

約数列:

[1, 2, 11, 13, 22, 26, 47, 94, 143, 286, 517, 611, 1034, 1222, 1409, 2818, 6721, 13442, 15499, 18317, 30998, 36634, 66223, 132446, 201487, 402974, 728453, 860899, 1456906, 1721798, 9469889, 18939778]

約数ペア:

[(1, 18939778), (2, 9469889), (11, 1721798), (13, 1456906), (22, 860899), (26, 728453), (47, 402974), (94, 201487), (143, 132446), (286, 66223), (517, 36634), (611, 30998), (1034, 18317), (1222, 15499), (1409, 13442), (2818, 6721)]