21553936

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9833}}^1$

素因数の和:9978

約数の個数: 20

約数和(自身を含む): 42069852

約数和(自身を除く): 20515916

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9833, 19666, 39332, 78664, 157328, 1347121, 2694242, 5388484, 10776968, 21553936]

約数ペア:

[(1, 21553936), (2, 10776968), (4, 5388484), (8, 2694242), (16, 1347121), (137, 157328), (274, 78664), (548, 39332), (1096, 19666), (2192, 9833)]