20505207

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{3547}}^1$

素因数の和:3638

約数の個数: 16

約数和(自身を含む): 28611072

約数和(自身を除く): 8105865

約数列:

[1, 3, 41, 47, 123, 141, 1927, 3547, 5781, 10641, 145427, 166709, 436281, 500127, 6835069, 20505207]

約数ペア:

[(1, 20505207), (3, 6835069), (41, 500127), (47, 436281), (123, 166709), (141, 145427), (1927, 10641), (3547, 5781)]