19997637

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{10271}}^1$

素因数の和:10344

約数の個数: 16

約数和(自身を含む): 29583360

約数和(自身を除く): 9585723

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 10271, 30813, 112981, 338943, 605989, 1817967, 6665879, 19997637]

約数ペア:

[(1, 19997637), (3, 6665879), (11, 1817967), (33, 605989), (59, 338943), (177, 112981), (649, 30813), (1947, 10271)]