215087391

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{21319}}^1$

素因数の和:21403

約数の個数: 24

約数和(自身を含む): 332592000

約数和(自身を除く): 117504609

約数列:

[1, 3, 9, 19, 57, 59, 171, 177, 531, 1121, 3363, 10089, 21319, 63957, 191871, 405061, 1215183, 1257821, 3645549, 3773463, 11320389, 23898599, 71695797, 215087391]

約数ペア:

[(1, 215087391), (3, 71695797), (9, 23898599), (19, 11320389), (57, 3773463), (59, 3645549), (171, 1257821), (177, 1215183), (531, 405061), (1121, 191871), (3363, 63957), (10089, 21319)]