21258939

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{9239}}^1$

素因数の和:9314

約数の個数: 16

約数和(自身を含む): 31046400

約数和(自身を除く): 9787461

約数列:

[1, 3, 13, 39, 59, 177, 767, 2301, 9239, 27717, 120107, 360321, 545101, 1635303, 7086313, 21258939]

約数ペア:

[(1, 21258939), (3, 7086313), (13, 1635303), (39, 545101), (59, 360321), (177, 120107), (767, 27717), (2301, 9239)]