81368427

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{359}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 127733760

約数和(自身を除く): 46365333

約数列:

[1, 3, 7, 21, 43, 129, 251, 301, 359, 753, 903, 1077, 1757, 2513, 5271, 7539, 10793, 15437, 32379, 46311, 75551, 90109, 108059, 226653, 270327, 324177, 630763, 1892289, 3874687, 11624061, 27122809, 81368427]

約数ペア:

[(1, 81368427), (3, 27122809), (7, 11624061), (21, 3874687), (43, 1892289), (129, 630763), (251, 324177), (301, 270327), (359, 226653), (753, 108059), (903, 90109), (1077, 75551), (1757, 46311), (2513, 32379), (5271, 15437), (7539, 10793)]