20806461

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1091}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 32594016

約数和(自身を除く): 11787555

約数列:

[1, 3, 9, 13, 39, 117, 163, 489, 1091, 1467, 2119, 3273, 6357, 9819, 14183, 19071, 42549, 127647, 177833, 533499, 1600497, 2311829, 6935487, 20806461]

約数ペア:

[(1, 20806461), (3, 6935487), (9, 2311829), (13, 1600497), (39, 533499), (117, 177833), (163, 127647), (489, 42549), (1091, 19071), (1467, 14183), (2119, 9819), (3273, 6357)]