20123793361

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1949}}^1\times {\mathrm{2677}}^1$

素因数の和:4681

約数の個数: 32

約数和(自身を含む): 25066080000

約数和(自身を除く): 4942286639

約数列:

[1, 7, 19, 29, 133, 203, 551, 1949, 2677, 3857, 13643, 18739, 37031, 50863, 56521, 77633, 259217, 356041, 395647, 543431, 1073899, 1475027, 5217473, 7517293, 10325189, 36522311, 99131987, 151306717, 693923909, 1059147019, 2874827623, 20123793361]

約数ペア:

[(1, 20123793361), (7, 2874827623), (19, 1059147019), (29, 693923909), (133, 151306717), (203, 99131987), (551, 36522311), (1949, 10325189), (2677, 7517293), (3857, 5217473), (13643, 1475027), (18739, 1073899), (37031, 543431), (50863, 395647), (56521, 356041), (77633, 259217)]