19491381

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7933}}^1$

素因数の和:7962

約数の個数: 32

約数和(自身を含む): 35544320

約数和(自身を除く): 16052939

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 7933, 23799, 55531, 71397, 103129, 166593, 214191, 309387, 499779, 721903, 928161, 1499337, 2165709, 2784483, 6497127, 19491381]

約数ペア:

[(1, 19491381), (3, 6497127), (7, 2784483), (9, 2165709), (13, 1499337), (21, 928161), (27, 721903), (39, 499779), (63, 309387), (91, 214191), (117, 166593), (189, 103129), (273, 71397), (351, 55531), (819, 23799), (2457, 7933)]