87219979

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2897}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 120185856

約数和(自身を除く): 32965877

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 1309, 1771, 2737, 2897, 4301, 20279, 30107, 31867, 49249, 66631, 223069, 344743, 466417, 541739, 732941, 1132727, 3792173, 5130587, 7929089, 12459997, 87219979]

約数ペア:

[(1, 87219979), (7, 12459997), (11, 7929089), (17, 5130587), (23, 3792173), (77, 1132727), (119, 732941), (161, 541739), (187, 466417), (253, 344743), (391, 223069), (1309, 66631), (1771, 49249), (2737, 31867), (2897, 30107), (4301, 20279)]