21301813

素因数分解:

${\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2648267

約数列:

[1, 13, 43, 53, 559, 689, 719, 2279, 9347, 29627, 30917, 38107, 401921, 495391, 1638601, 21301813]

約数ペア:

[(1, 21301813), (13, 1638601), (43, 495391), (53, 401921), (559, 38107), (689, 30917), (719, 29627), (2279, 9347)]