16605855

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{443}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 35532432

約数和(自身を除く): 18926577

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 49, 51, 63, 85, 105, 119, 147, 153, 245, 255, 315, 357, 441, 443, 595, 735, 765, 833, 1071, 1329, 1785, 2205, 2215, 2499, 3101, 3987, 4165, 5355, 6645, 7497, 7531, 9303, 12495, 15505, 19935, 21707, 22593, 27909, 37485, 37655, 46515, 52717, 65121, 67779, 108535, 112965, 139545, 158151, 195363, 263585, 325605, 338895, 369019, 474453, 790755, 976815, 1107057, 1845095, 2372265, 3321171, 5535285, 16605855]

約数ペア:

[(1, 16605855), (3, 5535285), (5, 3321171), (7, 2372265), (9, 1845095), (15, 1107057), (17, 976815), (21, 790755), (35, 474453), (45, 369019), (49, 338895), (51, 325605), (63, 263585), (85, 195363), (105, 158151), (119, 139545), (147, 112965), (153, 108535), (245, 67779), (255, 65121), (315, 52717), (357, 46515), (441, 37655), (443, 37485), (595, 27909), (735, 22593), (765, 21707), (833, 19935), (1071, 15505), (1329, 12495), (1785, 9303), (2205, 7531), (2215, 7497), (2499, 6645), (3101, 5355), (3987, 4165)]