21187228

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{72559}}^1$

素因数の和:72636

約数の個数: 12

約数和(自身を含む): 37586080

約数和(自身を除く): 16398852

約数列:

[1, 2, 4, 73, 146, 292, 72559, 145118, 290236, 5296807, 10593614, 21187228]

約数ペア:

[(1, 21187228), (2, 10593614), (4, 5296807), (73, 290236), (146, 145118), (292, 72559)]