21333939

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{9649}}^1$

素因数の和:9730

約数の個数: 16

約数和(自身を含む): 31497600

約数和(自身を除く): 10163661

約数列:

[1, 3, 11, 33, 67, 201, 737, 2211, 9649, 28947, 106139, 318417, 646483, 1939449, 7111313, 21333939]

約数ペア:

[(1, 21333939), (3, 7111313), (11, 1939449), (33, 646483), (67, 318417), (201, 106139), (737, 28947), (2211, 9649)]