21249439

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 23617440

約数和(自身を除く): 2368001

約数列:

[1, 17, 41, 43, 697, 709, 731, 1763, 12053, 29069, 29971, 30487, 494173, 518279, 1249967, 21249439]

約数ペア:

[(1, 21249439), (17, 1249967), (41, 518279), (43, 494173), (697, 30487), (709, 29971), (731, 29069), (1763, 12053)]