20727213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{4057}}^1$

素因数の和:4204

約数の個数: 16

約数和(自身を含む): 29996736

約数和(自身を除く): 9269523

約数列:

[1, 3, 13, 39, 131, 393, 1703, 4057, 5109, 12171, 52741, 158223, 531467, 1594401, 6909071, 20727213]

約数ペア:

[(1, 20727213), (3, 6909071), (13, 1594401), (39, 531467), (131, 158223), (393, 52741), (1703, 12171), (4057, 5109)]