21547292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 43347360

約数和(自身を除く): 21800068

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 113, 193, 226, 247, 386, 452, 494, 772, 988, 1469, 2147, 2509, 2938, 3667, 4294, 5018, 5876, 7334, 8588, 10036, 14668, 21809, 27911, 43618, 47671, 55822, 87236, 95342, 111644, 190684, 283517, 414371, 567034, 828742, 1134068, 1657484, 5386823, 10773646, 21547292]

約数ペア:

[(1, 21547292), (2, 10773646), (4, 5386823), (13, 1657484), (19, 1134068), (26, 828742), (38, 567034), (52, 414371), (76, 283517), (113, 190684), (193, 111644), (226, 95342), (247, 87236), (386, 55822), (452, 47671), (494, 43618), (772, 27911), (988, 21809), (1469, 14668), (2147, 10036), (2509, 8588), (2938, 7334), (3667, 5876), (4294, 5018)]