81543891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2837}}^1$

素因数の和:2931

約数の個数: 32

約数和(自身を含む): 129685248

約数和(自身を除く): 48141357

約数列:

[1, 3, 11, 13, 33, 39, 67, 143, 201, 429, 737, 871, 2211, 2613, 2837, 8511, 9581, 28743, 31207, 36881, 93621, 110643, 190079, 405691, 570237, 1217073, 2090869, 2471027, 6272607, 7413081, 27181297, 81543891]

約数ペア:

[(1, 81543891), (3, 27181297), (11, 7413081), (13, 6272607), (33, 2471027), (39, 2090869), (67, 1217073), (143, 570237), (201, 405691), (429, 190079), (737, 110643), (871, 93621), (2211, 36881), (2613, 31207), (2837, 28743), (8511, 9581)]