12420621

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:207

約数の個数: 40

約数和(自身を含む): 19863360

約数和(自身を除く): 7442739

約数列:

[1, 3, 9, 23, 27, 59, 69, 81, 113, 177, 207, 339, 531, 621, 1017, 1357, 1593, 1863, 2599, 3051, 4071, 4779, 6667, 7797, 9153, 12213, 20001, 23391, 36639, 60003, 70173, 109917, 153341, 180009, 210519, 460023, 540027, 1380069, 4140207, 12420621]

約数ペア:

[(1, 12420621), (3, 4140207), (9, 1380069), (23, 540027), (27, 460023), (59, 210519), (69, 180009), (81, 153341), (113, 109917), (177, 70173), (207, 60003), (339, 36639), (531, 23391), (621, 20001), (1017, 12213), (1357, 9153), (1593, 7797), (1863, 6667), (2599, 4779), (3051, 4071)]