20178507923

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1\times {\mathrm{2053}}^1$

素因数の和:2511

約数の個数: 32

約数和(自身を含む): 23955095424

約数和(自身を除く): 3776587501

約数列:

[1, 7, 37, 137, 259, 277, 959, 1939, 2053, 5069, 10249, 14371, 35483, 37949, 71743, 75961, 265643, 281261, 531727, 568681, 1404113, 1968827, 3980767, 9828791, 10406657, 21041197, 72846599, 77909297, 147288379, 545365079, 2882643989, 20178507923]

約数ペア:

[(1, 20178507923), (7, 2882643989), (37, 545365079), (137, 147288379), (259, 77909297), (277, 72846599), (959, 21041197), (1939, 10406657), (2053, 9828791), (5069, 3980767), (10249, 1968827), (14371, 1404113), (35483, 568681), (37949, 531727), (71743, 281261), (75961, 265643)]