20736387

素因数分解:

$3^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{743}}^1$

素因数の和:1199

約数の個数: 24

約数和(自身を含む): 34354944

約数和(自身を除く): 13618557

約数列:

[1, 3, 7, 9, 21, 63, 443, 743, 1329, 2229, 3101, 3987, 5201, 6687, 9303, 15603, 27909, 46809, 329149, 987447, 2304043, 2962341, 6912129, 20736387]

約数ペア:

[(1, 20736387), (3, 6912129), (7, 2962341), (9, 2304043), (21, 987447), (63, 329149), (443, 46809), (743, 27909), (1329, 15603), (2229, 9303), (3101, 6687), (3987, 5201)]