31947363

素因数分解:

$3^2\times 7^3\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:237

約数の個数: 48

約数和(自身を含む): 54912000

約数和(自身を除く): 22964637

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 131, 147, 237, 343, 393, 441, 553, 711, 917, 1029, 1179, 1659, 2751, 3087, 3871, 4977, 6419, 8253, 10349, 11613, 19257, 27097, 31047, 34839, 44933, 57771, 72443, 81291, 93141, 134799, 217329, 243873, 404397, 507101, 651987, 1521303, 3549707, 4563909, 10649121, 31947363]

約数ペア:

[(1, 31947363), (3, 10649121), (7, 4563909), (9, 3549707), (21, 1521303), (49, 651987), (63, 507101), (79, 404397), (131, 243873), (147, 217329), (237, 134799), (343, 93141), (393, 81291), (441, 72443), (553, 57771), (711, 44933), (917, 34839), (1029, 31047), (1179, 27097), (1659, 19257), (2751, 11613), (3087, 10349), (3871, 8253), (4977, 6419)]