21095073

素因数分解:

$3^6\times {\mathrm{19}}^1\times {\mathrm{1523}}^1$

素因数の和:1560

約数の個数: 28

約数和(自身を含む): 33314640

約数和(自身を除く): 12219567

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 729, 1523, 1539, 4569, 4617, 13707, 13851, 28937, 41121, 86811, 123363, 260433, 370089, 781299, 1110267, 2343897, 7031691, 21095073]

約数ペア:

[(1, 21095073), (3, 7031691), (9, 2343897), (19, 1110267), (27, 781299), (57, 370089), (81, 260433), (171, 123363), (243, 86811), (513, 41121), (729, 28937), (1523, 13851), (1539, 13707), (4569, 4617)]