21321292605

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1\times {\mathrm{105517}}^1$

素因数の和:106253

約数の個数: 32

約数和(自身を含む): 35960534400

約数和(自身を除く): 14639241795

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 709, 2127, 3545, 10635, 13471, 40413, 67355, 105517, 202065, 316551, 527585, 1582755, 2004823, 6014469, 10024115, 30072345, 74811553, 224434659, 374057765, 1122173295, 1421419507, 4264258521, 7107097535, 21321292605]

約数ペア:

[(1, 21321292605), (3, 7107097535), (5, 4264258521), (15, 1421419507), (19, 1122173295), (57, 374057765), (95, 224434659), (285, 74811553), (709, 30072345), (2127, 10024115), (3545, 6014469), (10635, 2004823), (13471, 1582755), (40413, 527585), (67355, 316551), (105517, 202065)]