21887805

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{10651}}^1$

素因数の和:10796

約数の個数: 16

約数和(自身を含む): 35279424

約数和(自身を除く): 13391619

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 10651, 31953, 53255, 159765, 1459187, 4377561, 7295935, 21887805]

約数ペア:

[(1, 21887805), (3, 7295935), (5, 4377561), (15, 1459187), (137, 159765), (411, 53255), (685, 31953), (2055, 10651)]