20525904

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{2909}}^1$

素因数の和:2937

約数の個数: 90

約数和(自身を含む): 66845610

約数和(自身を除く): 46319706

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 84, 98, 112, 126, 144, 147, 168, 196, 252, 294, 336, 392, 441, 504, 588, 784, 882, 1008, 1176, 1764, 2352, 2909, 3528, 5818, 7056, 8727, 11636, 17454, 20363, 23272, 26181, 34908, 40726, 46544, 52362, 61089, 69816, 81452, 104724, 122178, 139632, 142541, 162904, 183267, 209448, 244356, 285082, 325808, 366534, 418896, 427623, 488712, 570164, 733068, 855246, 977424, 1140328, 1282869, 1466136, 1710492, 2280656, 2565738, 2932272, 3420984, 5131476, 6841968, 10262952, 20525904]

約数ペア:

[(1, 20525904), (2, 10262952), (3, 6841968), (4, 5131476), (6, 3420984), (7, 2932272), (8, 2565738), (9, 2280656), (12, 1710492), (14, 1466136), (16, 1282869), (18, 1140328), (21, 977424), (24, 855246), (28, 733068), (36, 570164), (42, 488712), (48, 427623), (49, 418896), (56, 366534), (63, 325808), (72, 285082), (84, 244356), (98, 209448), (112, 183267), (126, 162904), (144, 142541), (147, 139632), (168, 122178), (196, 104724), (252, 81452), (294, 69816), (336, 61089), (392, 52362), (441, 46544), (504, 40726), (588, 34908), (784, 26181), (882, 23272), (1008, 20363), (1176, 17454), (1764, 11636), (2352, 8727), (2909, 7056), (3528, 5818)]