21946725

素因数分解:

$3^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{947}}^1$

素因数の和:1066

約数の個数: 36

約数和(自身を含む): 39732576

約数和(自身を除く): 17785851

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 103, 225, 309, 515, 927, 947, 1545, 2575, 2841, 4635, 4735, 7725, 8523, 14205, 23175, 23675, 42615, 71025, 97541, 213075, 292623, 487705, 877869, 1463115, 2438525, 4389345, 7315575, 21946725]

約数ペア:

[(1, 21946725), (3, 7315575), (5, 4389345), (9, 2438525), (15, 1463115), (25, 877869), (45, 487705), (75, 292623), (103, 213075), (225, 97541), (309, 71025), (515, 42615), (927, 23675), (947, 23175), (1545, 14205), (2575, 8523), (2841, 7725), (4635, 4735)]