20766987

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{317}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 31253040

約数和(自身を除く): 10486053

約数列:

[1, 3, 9, 29, 87, 251, 261, 317, 753, 951, 2259, 2853, 7279, 9193, 21837, 27579, 65511, 79567, 82737, 238701, 716103, 2307443, 6922329, 20766987]

約数ペア:

[(1, 20766987), (3, 6922329), (9, 2307443), (29, 716103), (87, 238701), (251, 82737), (261, 79567), (317, 65511), (753, 27579), (951, 21837), (2259, 9193), (2853, 7279)]