21140343

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{5501}}^1$

素因数の和:5575

約数の個数: 24

約数和(自身を含む): 35476896

約数和(自身を除く): 14336553

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 5501, 16503, 38507, 49509, 115521, 335561, 346563, 1006683, 2348927, 3020049, 7046781, 21140343]

約数ペア:

[(1, 21140343), (3, 7046781), (7, 3020049), (9, 2348927), (21, 1006683), (61, 346563), (63, 335561), (183, 115521), (427, 49509), (549, 38507), (1281, 16503), (3843, 5501)]