2191521

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{443}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 3132864

約数和(自身を除く): 941343

約数列:

[1, 3, 17, 51, 97, 291, 443, 1329, 1649, 4947, 7531, 22593, 42971, 128913, 730507, 2191521]

約数ペア:

[(1, 2191521), (3, 730507), (17, 128913), (51, 42971), (97, 22593), (291, 7531), (443, 4947), (1329, 1649)]