21310970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{112163}}^1$

素因数の和:112189

約数の個数: 16

約数和(自身を含む): 40379040

約数和(自身を除く): 19068070

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 112163, 224326, 560815, 1121630, 2131097, 4262194, 10655485, 21310970]

約数ペア:

[(1, 21310970), (2, 10655485), (5, 4262194), (10, 2131097), (19, 1121630), (38, 560815), (95, 224326), (190, 112163)]