20561268

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{991}}^1$

素因数の和:1037

約数の個数: 96

約数和(自身を含む): 62218240

約数和(自身を除く): 41656972

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 84, 91, 114, 133, 156, 182, 228, 247, 266, 273, 364, 399, 494, 532, 546, 741, 798, 988, 991, 1092, 1482, 1596, 1729, 1982, 2964, 2973, 3458, 3964, 5187, 5946, 6916, 6937, 10374, 11892, 12883, 13874, 18829, 20748, 20811, 25766, 27748, 37658, 38649, 41622, 51532, 56487, 75316, 77298, 83244, 90181, 112974, 131803, 154596, 180362, 225948, 244777, 263606, 270543, 360724, 395409, 489554, 527212, 541086, 734331, 790818, 979108, 1082172, 1468662, 1581636, 1713439, 2937324, 3426878, 5140317, 6853756, 10280634, 20561268]

約数ペア:

[(1, 20561268), (2, 10280634), (3, 6853756), (4, 5140317), (6, 3426878), (7, 2937324), (12, 1713439), (13, 1581636), (14, 1468662), (19, 1082172), (21, 979108), (26, 790818), (28, 734331), (38, 541086), (39, 527212), (42, 489554), (52, 395409), (57, 360724), (76, 270543), (78, 263606), (84, 244777), (91, 225948), (114, 180362), (133, 154596), (156, 131803), (182, 112974), (228, 90181), (247, 83244), (266, 77298), (273, 75316), (364, 56487), (399, 51532), (494, 41622), (532, 38649), (546, 37658), (741, 27748), (798, 25766), (988, 20811), (991, 20748), (1092, 18829), (1482, 13874), (1596, 12883), (1729, 11892), (1982, 10374), (2964, 6937), (2973, 6916), (3458, 5946), (3964, 5187)]