28919871

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:471

約数の個数: 24

約数和(自身を含む): 42673904

約数和(自身を除く): 13754033

約数列:

[1, 3, 9, 97, 157, 211, 291, 471, 633, 873, 1413, 1899, 15229, 20467, 33127, 45687, 61401, 99381, 137061, 184203, 298143, 3213319, 9639957, 28919871]

約数ペア:

[(1, 28919871), (3, 9639957), (9, 3213319), (97, 298143), (157, 184203), (211, 137061), (291, 99381), (471, 61401), (633, 45687), (873, 33127), (1413, 20467), (1899, 15229)]