20997216

素因数分解:

$2^5\times 3^2\times {\mathrm{72907}}^1$

素因数の和:72923

約数の個数: 36

約数和(自身を含む): 59711652

約数和(自身を除く): 38714436

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 288, 72907, 145814, 218721, 291628, 437442, 583256, 656163, 874884, 1166512, 1312326, 1749768, 2333024, 2624652, 3499536, 5249304, 6999072, 10498608, 20997216]

約数ペア:

[(1, 20997216), (2, 10498608), (3, 6999072), (4, 5249304), (6, 3499536), (8, 2624652), (9, 2333024), (12, 1749768), (16, 1312326), (18, 1166512), (24, 874884), (32, 656163), (36, 583256), (48, 437442), (72, 291628), (96, 218721), (144, 145814), (288, 72907)]