21193669449

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{501139}}^1$

素因数の和:501309

約数の個数: 24

約数和(自身を含む): 31688084480

約数和(自身を除く): 10494415031

約数列:

[1, 3, 9, 37, 111, 127, 333, 381, 1143, 4699, 14097, 42291, 501139, 1503417, 4510251, 18542143, 55626429, 63644653, 166879287, 190933959, 572801877, 2354852161, 7064556483, 21193669449]

約数ペア:

[(1, 21193669449), (3, 7064556483), (9, 2354852161), (37, 572801877), (111, 190933959), (127, 166879287), (333, 63644653), (381, 55626429), (1143, 18542143), (4699, 4510251), (14097, 1503417), (42291, 501139)]