21755253

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{1109}}^1$

素因数の和:1628

約数の個数: 16

約数和(自身を含む): 31328640

約数和(自身を除く): 9573387

約数列:

[1, 3, 13, 39, 503, 1109, 1509, 3327, 6539, 14417, 19617, 43251, 557827, 1673481, 7251751, 21755253]

約数ペア:

[(1, 21755253), (3, 7251751), (13, 1673481), (39, 557827), (503, 43251), (1109, 19617), (1509, 14417), (3327, 6539)]