16820199

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 28304640

約数和(自身を除く): 11484441

約数列:

[1, 3, 9, 11, 23, 33, 69, 83, 89, 99, 207, 249, 253, 267, 747, 759, 801, 913, 979, 1909, 2047, 2277, 2739, 2937, 5727, 6141, 7387, 8217, 8811, 17181, 18423, 20999, 22161, 22517, 62997, 66483, 67551, 81257, 169901, 188991, 202653, 243771, 509703, 731313, 1529109, 1868911, 5606733, 16820199]

約数ペア:

[(1, 16820199), (3, 5606733), (9, 1868911), (11, 1529109), (23, 731313), (33, 509703), (69, 243771), (83, 202653), (89, 188991), (99, 169901), (207, 81257), (249, 67551), (253, 66483), (267, 62997), (747, 22517), (759, 22161), (801, 20999), (913, 18423), (979, 17181), (1909, 8811), (2047, 8217), (2277, 7387), (2739, 6141), (2937, 5727)]