647974803

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{52387}}^1$

素因数の和:52447

約数の個数: 32

約数和(自身を含む): 1072906240

約数和(自身を除く): 424931437

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1767, 4123, 12369, 52387, 157161, 366709, 995353, 1100127, 1623997, 2986059, 4871991, 6967471, 11367979, 20902413, 30855943, 34103937, 92567829, 215991601, 647974803]

約数ペア:

[(1, 647974803), (3, 215991601), (7, 92567829), (19, 34103937), (21, 30855943), (31, 20902413), (57, 11367979), (93, 6967471), (133, 4871991), (217, 2986059), (399, 1623997), (589, 1100127), (651, 995353), (1767, 366709), (4123, 157161), (12369, 52387)]