21138943815

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{431363}}^1$

素因数の和:431402

約数の個数: 60

約数和(自身を含む): 41651645112

約数和(自身を除く): 20512701297

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 121, 135, 165, 297, 363, 405, 495, 605, 891, 1089, 1485, 1815, 3267, 4455, 5445, 9801, 16335, 49005, 431363, 1294089, 2156815, 3882267, 4744993, 6470445, 11646801, 14234979, 19411335, 23724965, 34940403, 42704937, 52194923, 58234005, 71174895, 128114811, 156584769, 174702015, 213524685, 260974615, 384344433, 469754307, 640574055, 782923845, 1409262921, 1921722165, 2348771535, 4227788763, 7046314605, 21138943815]

約数ペア:

[(1, 21138943815), (3, 7046314605), (5, 4227788763), (9, 2348771535), (11, 1921722165), (15, 1409262921), (27, 782923845), (33, 640574055), (45, 469754307), (55, 384344433), (81, 260974615), (99, 213524685), (121, 174702015), (135, 156584769), (165, 128114811), (297, 71174895), (363, 58234005), (405, 52194923), (495, 42704937), (605, 34940403), (891, 23724965), (1089, 19411335), (1485, 14234979), (1815, 11646801), (3267, 6470445), (4455, 4744993), (5445, 3882267), (9801, 2156815), (16335, 1294089), (49005, 431363)]