163921905

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4373}}^1$

素因数の和:4415

約数の個数: 72

約数和(自身を含む): 350042472

約数和(自身を除く): 186120567

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, 4373, 5355, 7497, 12495, 13119, 21865, 30611, 37485, 39357, 65595, 74341, 91833, 153055, 196785, 214277, 223023, 275499, 371705, 459165, 520387, 642831, 669069, 1071385, 1115115, 1377495, 1561161, 1928493, 2601935, 3214155, 3345345, 3642709, 4683483, 7805805, 9642465, 10928127, 18213545, 23417415, 32784381, 54640635, 163921905]

約数ペア:

[(1, 163921905), (3, 54640635), (5, 32784381), (7, 23417415), (9, 18213545), (15, 10928127), (17, 9642465), (21, 7805805), (35, 4683483), (45, 3642709), (49, 3345345), (51, 3214155), (63, 2601935), (85, 1928493), (105, 1561161), (119, 1377495), (147, 1115115), (153, 1071385), (245, 669069), (255, 642831), (315, 520387), (357, 459165), (441, 371705), (595, 275499), (735, 223023), (765, 214277), (833, 196785), (1071, 153055), (1785, 91833), (2205, 74341), (2499, 65595), (4165, 39357), (4373, 37485), (5355, 30611), (7497, 21865), (12495, 13119)]