51451281

素因数分解:

$3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{881}}^1$

素因数の和:1003

約数の個数: 40

約数和(自身を含む): 88792704

約数和(自身を除く): 37341423

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 103, 189, 309, 567, 721, 881, 927, 2163, 2643, 2781, 6167, 6489, 7929, 8343, 18501, 19467, 23787, 55503, 58401, 71361, 90743, 166509, 272229, 499527, 635201, 816687, 1905603, 2450061, 5716809, 7350183, 17150427, 51451281]

約数ペア:

[(1, 51451281), (3, 17150427), (7, 7350183), (9, 5716809), (21, 2450061), (27, 1905603), (63, 816687), (81, 635201), (103, 499527), (189, 272229), (309, 166509), (567, 90743), (721, 71361), (881, 58401), (927, 55503), (2163, 23787), (2643, 19467), (2781, 18501), (6167, 8343), (6489, 7929)]