55781001

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{13159}}^1$

素因数の和:13325

約数の個数: 16

約数和(自身を含む): 83171200

約数和(自身を除く): 27390199

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 13159, 39477, 118431, 355293, 2065963, 6197889, 18593667, 55781001]

約数ペア:

[(1, 55781001), (3, 18593667), (9, 6197889), (27, 2065963), (157, 355293), (471, 118431), (1413, 39477), (4239, 13159)]