20507823

素因数分解:

$3^4\times 7^2\times {\mathrm{5167}}^1$

素因数の和:5193

約数の個数: 30

約数和(自身を含む): 35643696

約数和(自身を除く): 15135873

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5167, 15501, 36169, 46503, 108507, 139509, 253183, 325521, 418527, 759549, 976563, 2278647, 2929689, 6835941, 20507823]

約数ペア:

[(1, 20507823), (3, 6835941), (7, 2929689), (9, 2278647), (21, 976563), (27, 759549), (49, 418527), (63, 325521), (81, 253183), (147, 139509), (189, 108507), (441, 46503), (567, 36169), (1323, 15501), (3969, 5167)]