19850985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:383

約数の個数: 96

約数和(自身を含む): 45556992

約数和(自身を除く): 25706007

約数列:

[1, 3, 5, 7, 9, 11, 15, 17, 21, 33, 35, 45, 51, 55, 63, 77, 85, 99, 105, 119, 153, 165, 187, 231, 255, 315, 337, 357, 385, 495, 561, 595, 693, 765, 935, 1011, 1071, 1155, 1309, 1683, 1685, 1785, 2359, 2805, 3033, 3465, 3707, 3927, 5055, 5355, 5729, 6545, 7077, 8415, 11121, 11781, 11795, 15165, 17187, 18535, 19635, 21231, 25949, 28645, 33363, 35385, 40103, 51561, 55605, 58905, 63019, 77847, 85935, 106155, 120309, 129745, 166815, 189057, 200515, 233541, 257805, 315095, 360927, 389235, 441133, 567171, 601545, 945285, 1167705, 1323399, 1804635, 2205665, 2835855, 3970197, 6616995, 19850985]

約数ペア:

[(1, 19850985), (3, 6616995), (5, 3970197), (7, 2835855), (9, 2205665), (11, 1804635), (15, 1323399), (17, 1167705), (21, 945285), (33, 601545), (35, 567171), (45, 441133), (51, 389235), (55, 360927), (63, 315095), (77, 257805), (85, 233541), (99, 200515), (105, 189057), (119, 166815), (153, 129745), (165, 120309), (187, 106155), (231, 85935), (255, 77847), (315, 63019), (337, 58905), (357, 55605), (385, 51561), (495, 40103), (561, 35385), (595, 33363), (693, 28645), (765, 25949), (935, 21231), (1011, 19635), (1071, 18535), (1155, 17187), (1309, 15165), (1683, 11795), (1685, 11781), (1785, 11121), (2359, 8415), (2805, 7077), (3033, 6545), (3465, 5729), (3707, 5355), (3927, 5055)]