19729017

素因数分解:

$3^2\times 7^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1$

素因数の和:128

約数の個数: 60

約数和(自身を含む): 36704304

約数和(自身を除く): 16975287

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 83, 99, 147, 231, 249, 343, 441, 539, 581, 693, 747, 913, 1029, 1617, 1743, 2401, 2739, 3087, 3773, 4067, 4851, 5229, 6391, 7203, 8217, 11319, 12201, 19173, 21609, 26411, 28469, 33957, 36603, 44737, 57519, 79233, 85407, 134211, 199283, 237699, 256221, 313159, 402633, 597849, 939477, 1793547, 2192113, 2818431, 6576339, 19729017]

約数ペア:

[(1, 19729017), (3, 6576339), (7, 2818431), (9, 2192113), (11, 1793547), (21, 939477), (33, 597849), (49, 402633), (63, 313159), (77, 256221), (83, 237699), (99, 199283), (147, 134211), (231, 85407), (249, 79233), (343, 57519), (441, 44737), (539, 36603), (581, 33957), (693, 28469), (747, 26411), (913, 21609), (1029, 19173), (1617, 12201), (1743, 11319), (2401, 8217), (2739, 7203), (3087, 6391), (3773, 5229), (4067, 4851)]