20440953

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 14153607

約数列:

[1, 3, 9, 13, 17, 39, 43, 51, 117, 129, 153, 221, 239, 387, 559, 663, 717, 731, 1677, 1989, 2151, 2193, 3107, 4063, 5031, 6579, 9321, 9503, 10277, 12189, 27963, 28509, 30831, 36567, 52819, 85527, 92493, 133601, 158457, 174709, 400803, 475371, 524127, 1202409, 1572381, 2271217, 6813651, 20440953]

約数ペア:

[(1, 20440953), (3, 6813651), (9, 2271217), (13, 1572381), (17, 1202409), (39, 524127), (43, 475371), (51, 400803), (117, 174709), (129, 158457), (153, 133601), (221, 92493), (239, 85527), (387, 52819), (559, 36567), (663, 30831), (717, 28509), (731, 27963), (1677, 12189), (1989, 10277), (2151, 9503), (2193, 9321), (3107, 6579), (4063, 5031)]