20407772

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{383}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 44900352

約数和(自身を除く): 24492580

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 173, 308, 346, 383, 692, 766, 1211, 1532, 1903, 2422, 2681, 3806, 4213, 4844, 5362, 7612, 8426, 10724, 13321, 16852, 26642, 29491, 53284, 58982, 66259, 117964, 132518, 265036, 463813, 728849, 927626, 1457698, 1855252, 2915396, 5101943, 10203886, 20407772]

約数ペア:

[(1, 20407772), (2, 10203886), (4, 5101943), (7, 2915396), (11, 1855252), (14, 1457698), (22, 927626), (28, 728849), (44, 463813), (77, 265036), (154, 132518), (173, 117964), (308, 66259), (346, 58982), (383, 53284), (692, 29491), (766, 26642), (1211, 16852), (1532, 13321), (1903, 10724), (2422, 8426), (2681, 7612), (3806, 5362), (4213, 4844)]