21399073

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{683}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 24131520

約数和(自身を除く): 2732447

約数列:

[1, 17, 19, 97, 323, 683, 1649, 1843, 11611, 12977, 31331, 66251, 220609, 1126267, 1258769, 21399073]

約数ペア:

[(1, 21399073), (17, 1258769), (19, 1126267), (97, 220609), (323, 66251), (683, 31331), (1649, 12977), (1843, 11611)]