19724133

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2049

約数の個数: 32

約数和(自身を含む): 32256000

約数和(自身を除く): 12531867

約数列:

[1, 3, 11, 13, 23, 33, 39, 69, 143, 253, 299, 429, 759, 897, 1999, 3289, 5997, 9867, 21989, 25987, 45977, 65967, 77961, 137931, 285857, 505747, 597701, 857571, 1517241, 1793103, 6574711, 19724133]

約数ペア:

[(1, 19724133), (3, 6574711), (11, 1793103), (13, 1517241), (23, 857571), (33, 597701), (39, 505747), (69, 285857), (143, 137931), (253, 77961), (299, 65967), (429, 45977), (759, 25987), (897, 21989), (1999, 9867), (3289, 5997)]