16811361

素因数分解:

$3^3\times 7^2\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 29494080

約数和(自身を除く): 12682719

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 97, 131, 147, 189, 291, 393, 441, 679, 873, 917, 1179, 1323, 2037, 2619, 2751, 3537, 4753, 6111, 6419, 8253, 12707, 14259, 18333, 19257, 24759, 38121, 42777, 57771, 88949, 114363, 128331, 173313, 266847, 343089, 622643, 800541, 1867929, 2401623, 5603787, 16811361]

約数ペア:

[(1, 16811361), (3, 5603787), (7, 2401623), (9, 1867929), (21, 800541), (27, 622643), (49, 343089), (63, 266847), (97, 173313), (131, 128331), (147, 114363), (189, 88949), (291, 57771), (393, 42777), (441, 38121), (679, 24759), (873, 19257), (917, 18333), (1179, 14259), (1323, 12707), (2037, 8253), (2619, 6419), (2751, 6111), (3537, 4753)]