18911343

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 28615680

約数和(自身を除く): 9704337

約数列:

[1, 3, 11, 33, 47, 89, 137, 141, 267, 411, 517, 979, 1507, 1551, 2937, 4183, 4521, 6439, 12193, 12549, 19317, 36579, 46013, 70829, 134123, 138039, 212487, 402369, 573071, 1719213, 6303781, 18911343]

約数ペア:

[(1, 18911343), (3, 6303781), (11, 1719213), (33, 573071), (47, 402369), (89, 212487), (137, 138039), (141, 134123), (267, 70829), (411, 46013), (517, 36579), (979, 19317), (1507, 12549), (1551, 12193), (2937, 6439), (4183, 4521)]