2021303655

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53923}}^1$

素因数の和:53965

約数の個数: 72

約数和(自身を含む): 4315429872

約数和(自身を除く): 2294126217

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, 595, 735, 765, 833, 1071, 1785, 2205, 2499, 4165, 5355, 7497, 12495, 37485, 53923, 161769, 269615, 377461, 485307, 808845, 916691, 1132383, 1887305, 2426535, 2642227, 2750073, 3397149, 4583455, 5661915, 6416837, 7926681, 8250219, 13211135, 13750365, 16985745, 19250511, 23780043, 32084185, 39633405, 41251095, 44917859, 57751533, 96252555, 118900215, 134753577, 224589295, 288757665, 404260731, 673767885, 2021303655]

約数ペア:

[(1, 2021303655), (3, 673767885), (5, 404260731), (7, 288757665), (9, 224589295), (15, 134753577), (17, 118900215), (21, 96252555), (35, 57751533), (45, 44917859), (49, 41251095), (51, 39633405), (63, 32084185), (85, 23780043), (105, 19250511), (119, 16985745), (147, 13750365), (153, 13211135), (245, 8250219), (255, 7926681), (315, 6416837), (357, 5661915), (441, 4583455), (595, 3397149), (735, 2750073), (765, 2642227), (833, 2426535), (1071, 1887305), (1785, 1132383), (2205, 916691), (2499, 808845), (4165, 485307), (5355, 377461), (7497, 269615), (12495, 161769), (37485, 53923)]