81251037

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 139201920

約数和(自身を除く): 57950883

約数列:

[1, 3, 7, 9, 21, 43, 63, 89, 129, 267, 301, 337, 387, 623, 801, 903, 1011, 1869, 2359, 2709, 3033, 3827, 5607, 7077, 11481, 14491, 21231, 26789, 29993, 34443, 43473, 80367, 89979, 101437, 130419, 209951, 241101, 269937, 304311, 629853, 912933, 1289699, 1889559, 3869097, 9027893, 11607291, 27083679, 81251037]

約数ペア:

[(1, 81251037), (3, 27083679), (7, 11607291), (9, 9027893), (21, 3869097), (43, 1889559), (63, 1289699), (89, 912933), (129, 629853), (267, 304311), (301, 269937), (337, 241101), (387, 209951), (623, 130419), (801, 101437), (903, 89979), (1011, 80367), (1869, 43473), (2359, 34443), (2709, 29993), (3033, 26789), (3827, 21231), (5607, 14491), (7077, 11481)]