21326415

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{7603}}^1$

素因数の和:7639

約数の個数: 32

約数和(自身を含む): 39419136

約数和(自身を除く): 18092721

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 7603, 22809, 38015, 83633, 114045, 129251, 250899, 387753, 418165, 646255, 1254495, 1421761, 1938765, 4265283, 7108805, 21326415]

約数ペア:

[(1, 21326415), (3, 7108805), (5, 4265283), (11, 1938765), (15, 1421761), (17, 1254495), (33, 646255), (51, 418165), (55, 387753), (85, 250899), (165, 129251), (187, 114045), (255, 83633), (561, 38015), (935, 22809), (2805, 7603)]