21338766

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:421

約数の個数: 48

約数和(自身を含む): 47848320

約数和(自身を除く): 26509554

約数列:

[1, 2, 3, 6, 9, 18, 59, 71, 118, 142, 177, 213, 283, 354, 426, 531, 566, 639, 849, 1062, 1278, 1698, 2547, 4189, 5094, 8378, 12567, 16697, 20093, 25134, 33394, 37701, 40186, 50091, 60279, 75402, 100182, 120558, 150273, 180837, 300546, 361674, 1185487, 2370974, 3556461, 7112922, 10669383, 21338766]

約数ペア:

[(1, 21338766), (2, 10669383), (3, 7112922), (6, 3556461), (9, 2370974), (18, 1185487), (59, 361674), (71, 300546), (118, 180837), (142, 150273), (177, 120558), (213, 100182), (283, 75402), (354, 60279), (426, 50091), (531, 40186), (566, 37701), (639, 33394), (849, 25134), (1062, 20093), (1278, 16697), (1698, 12567), (2547, 8378), (4189, 5094)]