1891161

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:885

約数の個数: 16

約数和(自身を含む): 2836800

約数和(自身を除く): 945639

約数列:

[1, 3, 9, 27, 89, 267, 787, 801, 2361, 2403, 7083, 21249, 70043, 210129, 630387, 1891161]

約数ペア:

[(1, 1891161), (3, 630387), (9, 210129), (27, 70043), (89, 21249), (267, 7083), (787, 2403), (801, 2361)]