21654165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{379}}^1$

素因数の和:693

約数の個数: 32

約数和(自身を含む): 37537920

約数和(自身を除く): 15883755

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 293, 379, 879, 1137, 1465, 1895, 3809, 4395, 4927, 5685, 11427, 14781, 19045, 24635, 57135, 73905, 111047, 333141, 555235, 1443611, 1665705, 4330833, 7218055, 21654165]

約数ペア:

[(1, 21654165), (3, 7218055), (5, 4330833), (13, 1665705), (15, 1443611), (39, 555235), (65, 333141), (195, 111047), (293, 73905), (379, 57135), (879, 24635), (1137, 19045), (1465, 14781), (1895, 11427), (3809, 5685), (4395, 4927)]