20728773

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7703}}^1$

素因数の和:7745

約数の個数: 24

約数和(自身を含む): 33651072

約数和(自身を除く): 12922299

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 7703, 23109, 69327, 100139, 177169, 300417, 531507, 901251, 1594521, 2303197, 6909591, 20728773]

約数ペア:

[(1, 20728773), (3, 6909591), (9, 2303197), (13, 1594521), (23, 901251), (39, 531507), (69, 300417), (117, 177169), (207, 100139), (299, 69327), (897, 23109), (2691, 7703)]