21065756

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{3797}}^1$

素因数の和:3893

約数の個数: 24

約数和(自身を含む): 39347280

約数和(自身を除く): 18281524

約数列:

[1, 2, 4, 19, 38, 73, 76, 146, 292, 1387, 2774, 3797, 5548, 7594, 15188, 72143, 144286, 277181, 288572, 554362, 1108724, 5266439, 10532878, 21065756]

約数ペア:

[(1, 21065756), (2, 10532878), (4, 5266439), (19, 1108724), (38, 554362), (73, 288572), (76, 277181), (146, 144286), (292, 72143), (1387, 15188), (2774, 7594), (3797, 5548)]