20613243

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 32440320

約数和(自身を除く): 11827077

約数列:

[1, 3, 7, 21, 59, 127, 131, 177, 381, 393, 413, 889, 917, 1239, 2667, 2751, 7493, 7729, 16637, 22479, 23187, 49911, 52451, 54103, 116459, 157353, 162309, 349377, 981583, 2944749, 6871081, 20613243]

約数ペア:

[(1, 20613243), (3, 6871081), (7, 2944749), (21, 981583), (59, 349377), (127, 162309), (131, 157353), (177, 116459), (381, 54103), (393, 52451), (413, 49911), (889, 23187), (917, 22479), (1239, 16637), (2667, 7729), (2751, 7493)]