21566493

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6827}}^1$

素因数の和:6855

約数の個数: 24

約数和(自身を含む): 34795488

約数和(自身を除く): 13228995

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6827, 20481, 61443, 88751, 184329, 266253, 552987, 798759, 1658961, 2396277, 7188831, 21566493]

約数ペア:

[(1, 21566493), (3, 7188831), (9, 2396277), (13, 1658961), (27, 798759), (39, 552987), (81, 266253), (117, 184329), (243, 88751), (351, 61443), (1053, 20481), (3159, 6827)]