21563091

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{2689}}^1$

素因数の和:2718

約数の個数: 28

約数和(自身を含む): 35282040

約数和(自身を除く): 13718949

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 729, 891, 2673, 2689, 8019, 8067, 24201, 29579, 72603, 88737, 217809, 266211, 653427, 798633, 1960281, 2395899, 7187697, 21563091]

約数ペア:

[(1, 21563091), (3, 7187697), (9, 2395899), (11, 1960281), (27, 798633), (33, 653427), (81, 266211), (99, 217809), (243, 88737), (297, 72603), (729, 29579), (891, 24201), (2673, 8067), (2689, 8019)]