21747267

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7481}}^1$

素因数の和:7523

約数の個数: 24

約数和(自身を含む): 35015760

約数和(自身を除く): 13268493

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7481, 22443, 67329, 127177, 142139, 381531, 426417, 1144593, 1279251, 2416363, 7249089, 21747267]

約数ペア:

[(1, 21747267), (3, 7249089), (9, 2416363), (17, 1279251), (19, 1144593), (51, 426417), (57, 381531), (153, 142139), (171, 127177), (323, 67329), (969, 22443), (2907, 7481)]