20215278

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 96

約数和(自身を含む): 51023520

約数和(自身を除く): 30808242

約数列:

[1, 2, 3, 6, 9, 17, 18, 19, 27, 34, 38, 51, 54, 57, 61, 102, 114, 122, 153, 171, 183, 306, 323, 342, 361, 366, 459, 513, 549, 646, 722, 918, 969, 1026, 1037, 1083, 1098, 1159, 1647, 1938, 2074, 2166, 2318, 2907, 3111, 3249, 3294, 3477, 5814, 6137, 6222, 6498, 6954, 8721, 9333, 9747, 10431, 12274, 17442, 18411, 18666, 19494, 19703, 20862, 22021, 27999, 31293, 36822, 39406, 44042, 55233, 55998, 59109, 62586, 66063, 110466, 118218, 132126, 165699, 177327, 198189, 331398, 354654, 374357, 396378, 531981, 594567, 748714, 1063962, 1123071, 1189134, 2246142, 3369213, 6738426, 10107639, 20215278]

約数ペア:

[(1, 20215278), (2, 10107639), (3, 6738426), (6, 3369213), (9, 2246142), (17, 1189134), (18, 1123071), (19, 1063962), (27, 748714), (34, 594567), (38, 531981), (51, 396378), (54, 374357), (57, 354654), (61, 331398), (102, 198189), (114, 177327), (122, 165699), (153, 132126), (171, 118218), (183, 110466), (306, 66063), (323, 62586), (342, 59109), (361, 55998), (366, 55233), (459, 44042), (513, 39406), (549, 36822), (646, 31293), (722, 27999), (918, 22021), (969, 20862), (1026, 19703), (1037, 19494), (1083, 18666), (1098, 18411), (1159, 17442), (1647, 12274), (1938, 10431), (2074, 9747), (2166, 9333), (2318, 8721), (2907, 6954), (3111, 6498), (3249, 6222), (3294, 6137), (3477, 5814)]