20874315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 96

約数和(自身を含む): 44126208

約数和(自身を除く): 23251893

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 53, 55, 77, 93, 105, 121, 155, 159, 165, 217, 231, 265, 341, 363, 371, 385, 465, 583, 605, 651, 795, 847, 1023, 1085, 1113, 1155, 1643, 1705, 1749, 1815, 1855, 2387, 2541, 2915, 3255, 3751, 4081, 4235, 4929, 5115, 5565, 6413, 7161, 8215, 8745, 11253, 11501, 11935, 12243, 12705, 18073, 18755, 19239, 20405, 24645, 26257, 32065, 34503, 35805, 44891, 54219, 56265, 57505, 61215, 78771, 90365, 96195, 126511, 131285, 134673, 172515, 198803, 224455, 271095, 379533, 393855, 596409, 632555, 673365, 994015, 1391621, 1897665, 2982045, 4174863, 6958105, 20874315]

約数ペア:

[(1, 20874315), (3, 6958105), (5, 4174863), (7, 2982045), (11, 1897665), (15, 1391621), (21, 994015), (31, 673365), (33, 632555), (35, 596409), (53, 393855), (55, 379533), (77, 271095), (93, 224455), (105, 198803), (121, 172515), (155, 134673), (159, 131285), (165, 126511), (217, 96195), (231, 90365), (265, 78771), (341, 61215), (363, 57505), (371, 56265), (385, 54219), (465, 44891), (583, 35805), (605, 34503), (651, 32065), (795, 26257), (847, 24645), (1023, 20405), (1085, 19239), (1113, 18755), (1155, 18073), (1643, 12705), (1705, 12243), (1749, 11935), (1815, 11501), (1855, 11253), (2387, 8745), (2541, 8215), (2915, 7161), (3255, 6413), (3751, 5565), (4081, 5115), (4235, 4929)]