21352086

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1031

約数の個数: 80

約数和(自身を含む): 57615360

約数和(自身を除く): 36263274

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 81, 114, 126, 133, 162, 171, 189, 266, 342, 378, 399, 513, 567, 798, 991, 1026, 1134, 1197, 1539, 1982, 2394, 2973, 3078, 3591, 5946, 6937, 7182, 8919, 10773, 13874, 17838, 18829, 20811, 21546, 26757, 37658, 41622, 53514, 56487, 62433, 80271, 112974, 124866, 131803, 160542, 169461, 187299, 263606, 338922, 374598, 395409, 508383, 561897, 790818, 1016766, 1123794, 1186227, 1525149, 2372454, 3050298, 3558681, 7117362, 10676043, 21352086]

約数ペア:

[(1, 21352086), (2, 10676043), (3, 7117362), (6, 3558681), (7, 3050298), (9, 2372454), (14, 1525149), (18, 1186227), (19, 1123794), (21, 1016766), (27, 790818), (38, 561897), (42, 508383), (54, 395409), (57, 374598), (63, 338922), (81, 263606), (114, 187299), (126, 169461), (133, 160542), (162, 131803), (171, 124866), (189, 112974), (266, 80271), (342, 62433), (378, 56487), (399, 53514), (513, 41622), (567, 37658), (798, 26757), (991, 21546), (1026, 20811), (1134, 18829), (1197, 17838), (1539, 13874), (1982, 10773), (2394, 8919), (2973, 7182), (3078, 6937), (3591, 5946)]