16819978

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1709}}^1$

素因数の和:1774

約数の個数: 32

約数和(自身を含む): 31190400

約数和(自身を除く): 14370422

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 1709, 3418, 4921, 9842, 11963, 23926, 32471, 63233, 64942, 126466, 227297, 442631, 454594, 885262, 1201427, 2402854, 8409989, 16819978]

約数ペア:

[(1, 16819978), (2, 8409989), (7, 2402854), (14, 1201427), (19, 885262), (37, 454594), (38, 442631), (74, 227297), (133, 126466), (259, 64942), (266, 63233), (518, 32471), (703, 23926), (1406, 11963), (1709, 9842), (3418, 4921)]