21325095

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{643}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 40989312

約数和(自身を除く): 19664217

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 67, 99, 165, 201, 335, 495, 603, 643, 737, 1005, 1929, 2211, 3015, 3215, 3685, 5787, 6633, 7073, 9645, 11055, 21219, 28935, 33165, 35365, 43081, 63657, 106095, 129243, 215405, 318285, 387729, 473891, 646215, 1421673, 1938645, 2369455, 4265019, 7108365, 21325095]

約数ペア:

[(1, 21325095), (3, 7108365), (5, 4265019), (9, 2369455), (11, 1938645), (15, 1421673), (33, 646215), (45, 473891), (55, 387729), (67, 318285), (99, 215405), (165, 129243), (201, 106095), (335, 63657), (495, 43081), (603, 35365), (643, 33165), (737, 28935), (1005, 21219), (1929, 11055), (2211, 9645), (3015, 7073), (3215, 6633), (3685, 5787)]