20793465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{353}}^1$

素因数の和:399

約数の個数: 96

約数和(自身を含む): 47713536

約数和(自身を除く): 26920071

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, 353, 357, 385, 495, 561, 595, 693, 765, 935, 1059, 1071, 1155, 1309, 1683, 1765, 1785, 2471, 2805, 3177, 3465, 3883, 3927, 5295, 5355, 6001, 6545, 7413, 8415, 11649, 11781, 12355, 15885, 18003, 19415, 19635, 22239, 27181, 30005, 34947, 37065, 42007, 54009, 58245, 58905, 66011, 81543, 90015, 111195, 126021, 135905, 174735, 198033, 210035, 244629, 270045, 330055, 378063, 407715, 462077, 594099, 630105, 990165, 1223145, 1386231, 1890315, 2310385, 2970495, 4158693, 6931155, 20793465]

約数ペア:

[(1, 20793465), (3, 6931155), (5, 4158693), (7, 2970495), (9, 2310385), (11, 1890315), (15, 1386231), (17, 1223145), (21, 990165), (33, 630105), (35, 594099), (45, 462077), (51, 407715), (55, 378063), (63, 330055), (77, 270045), (85, 244629), (99, 210035), (105, 198033), (119, 174735), (153, 135905), (165, 126021), (187, 111195), (231, 90015), (255, 81543), (315, 66011), (353, 58905), (357, 58245), (385, 54009), (495, 42007), (561, 37065), (595, 34947), (693, 30005), (765, 27181), (935, 22239), (1059, 19635), (1071, 19415), (1155, 18003), (1309, 15885), (1683, 12355), (1765, 11781), (1785, 11649), (2471, 8415), (2805, 7413), (3177, 6545), (3465, 6001), (3883, 5355), (3927, 5295)]