28160181

素因数分解:

$3^2\times 7^1\times {\mathrm{443}}^1\times {\mathrm{1009}}^1$

素因数の和:1465

約数の個数: 24

約数和(自身を含む): 46637760

約数和(自身を除く): 18477579

約数列:

[1, 3, 7, 9, 21, 63, 443, 1009, 1329, 3027, 3101, 3987, 7063, 9081, 9303, 21189, 27909, 63567, 446987, 1340961, 3128909, 4022883, 9386727, 28160181]

約数ペア:

[(1, 28160181), (3, 9386727), (7, 4022883), (9, 3128909), (21, 1340961), (63, 446987), (443, 63567), (1009, 27909), (1329, 21189), (3027, 9303), (3101, 9081), (3987, 7063)]