19866412

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1223}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 36191232

約数和(自身を除く): 16324820

約数列:

[1, 2, 4, 31, 62, 124, 131, 262, 524, 1223, 2446, 4061, 4892, 8122, 16244, 37913, 75826, 151652, 160213, 320426, 640852, 4966603, 9933206, 19866412]

約数ペア:

[(1, 19866412), (2, 9933206), (4, 4966603), (31, 640852), (62, 320426), (124, 160213), (131, 151652), (262, 75826), (524, 37913), (1223, 16244), (2446, 8122), (4061, 4892)]