15563721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 23113728

約数和(自身を除く): 7550007

約数列:

[1, 3, 17, 43, 47, 51, 129, 141, 151, 453, 731, 799, 2021, 2193, 2397, 2567, 6063, 6493, 7097, 7701, 19479, 21291, 34357, 103071, 110381, 120649, 305171, 331143, 361947, 915513, 5187907, 15563721]

約数ペア:

[(1, 15563721), (3, 5187907), (17, 915513), (43, 361947), (47, 331143), (51, 305171), (129, 120649), (141, 110381), (151, 103071), (453, 34357), (731, 21291), (799, 19479), (2021, 7701), (2193, 7097), (2397, 6493), (2567, 6063)]