81273423

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{257}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 139394304

約数和(自身を除く): 58120881

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 231, 257, 259, 407, 771, 777, 1221, 1369, 1799, 2827, 2849, 4107, 5397, 8481, 8547, 9509, 9583, 15059, 19789, 28527, 28749, 45177, 59367, 66563, 104599, 105413, 199689, 313797, 316239, 351833, 732193, 1055499, 2196579, 2462831, 3870163, 7388493, 11610489, 27091141, 81273423]

約数ペア:

[(1, 81273423), (3, 27091141), (7, 11610489), (11, 7388493), (21, 3870163), (33, 2462831), (37, 2196579), (77, 1055499), (111, 732193), (231, 351833), (257, 316239), (259, 313797), (407, 199689), (771, 105413), (777, 104599), (1221, 66563), (1369, 59367), (1799, 45177), (2827, 28749), (2849, 28527), (4107, 19789), (5397, 15059), (8481, 9583), (8547, 9509)]