21435021

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1217}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 32934720

約数和(自身を除く): 11499699

約数列:

[1, 3, 9, 19, 57, 103, 171, 309, 927, 1217, 1957, 3651, 5871, 10953, 17613, 23123, 69369, 125351, 208107, 376053, 1128159, 2381669, 7145007, 21435021]

約数ペア:

[(1, 21435021), (3, 7145007), (9, 2381669), (19, 1128159), (57, 376053), (103, 208107), (171, 125351), (309, 69369), (927, 23123), (1217, 17613), (1957, 10953), (3651, 5871)]