21270711

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{761}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 35698176

約数和(自身を除く): 14427465

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 761, 847, 1331, 2283, 2541, 3993, 5327, 8371, 9317, 15981, 25113, 27951, 58597, 92081, 175791, 276243, 644567, 1012891, 1933701, 3038673, 7090237, 21270711]

約数ペア:

[(1, 21270711), (3, 7090237), (7, 3038673), (11, 1933701), (21, 1012891), (33, 644567), (77, 276243), (121, 175791), (231, 92081), (363, 58597), (761, 27951), (847, 25113), (1331, 15981), (2283, 9317), (2541, 8371), (3993, 5327)]