21136977

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{337}}^1$

素因数の和:470

約数の個数: 32

約数和(自身を含む): 33096960

約数和(自身を除く): 11959983

約数列:

[1, 3, 9, 23, 27, 69, 101, 207, 303, 337, 621, 909, 1011, 2323, 2727, 3033, 6969, 7751, 9099, 20907, 23253, 34037, 62721, 69759, 102111, 209277, 306333, 782851, 918999, 2348553, 7045659, 21136977]

約数ペア:

[(1, 21136977), (3, 7045659), (9, 2348553), (23, 918999), (27, 782851), (69, 306333), (101, 209277), (207, 102111), (303, 69759), (337, 62721), (621, 34037), (909, 23253), (1011, 20907), (2323, 9099), (2727, 7751), (3033, 6969)]