131583221

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 169648128

約数和(自身を除く): 38064907

約数列:

[1, 7, 11, 47, 77, 103, 329, 353, 517, 721, 1133, 2471, 3619, 3883, 4841, 7931, 16591, 27181, 33887, 36359, 53251, 116137, 182501, 254513, 372757, 399949, 1277507, 1708873, 2799643, 11962111, 18797603, 131583221]

約数ペア:

[(1, 131583221), (7, 18797603), (11, 11962111), (47, 2799643), (77, 1708873), (103, 1277507), (329, 399949), (353, 372757), (517, 254513), (721, 182501), (1133, 116137), (2471, 53251), (3619, 36359), (3883, 33887), (4841, 27181), (7931, 16591)]