21659913

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{313}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 35268480

約数和(自身を除く): 13608567

約数列:

[1, 3, 9, 11, 27, 33, 99, 233, 297, 313, 699, 939, 2097, 2563, 2817, 3443, 6291, 7689, 8451, 10329, 23067, 30987, 69201, 72929, 92961, 218787, 656361, 802219, 1969083, 2406657, 7219971, 21659913]

約数ペア:

[(1, 21659913), (3, 7219971), (9, 2406657), (11, 1969083), (27, 802219), (33, 656361), (99, 218787), (233, 92961), (297, 72929), (313, 69201), (699, 30987), (939, 23067), (2097, 10329), (2563, 8451), (2817, 7689), (3443, 6291)]