21296891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14557}}^1$

素因数の和:14594

約数の個数: 16

約数和(自身を含む): 27951360

約数和(自身を除く): 6654469

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14557, 101899, 160127, 276583, 1120889, 1936081, 3042413, 21296891]

約数ペア:

[(1, 21296891), (7, 3042413), (11, 1936081), (19, 1120889), (77, 276583), (133, 160127), (209, 101899), (1463, 14557)]