21190719

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{33797}}^1$

素因数の和:33830

約数の個数: 16

約数和(自身を含む): 32446080

約数和(自身を除く): 11255361

約数列:

[1, 3, 11, 19, 33, 57, 209, 627, 33797, 101391, 371767, 642143, 1115301, 1926429, 7063573, 21190719]

約数ペア:

[(1, 21190719), (3, 7063573), (11, 1926429), (19, 1115301), (33, 642143), (57, 371767), (209, 101391), (627, 33797)]