21130038

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 28290762

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 103, 131, 174, 206, 261, 262, 309, 393, 522, 618, 783, 786, 927, 1179, 1566, 1854, 2358, 2781, 2987, 3537, 3799, 5562, 5974, 7074, 7598, 8961, 11397, 13493, 17922, 22794, 26883, 26986, 34191, 40479, 53766, 68382, 80649, 80958, 102573, 121437, 161298, 205146, 242874, 364311, 391297, 728622, 782594, 1173891, 2347782, 3521673, 7043346, 10565019, 21130038]

約数ペア:

[(1, 21130038), (2, 10565019), (3, 7043346), (6, 3521673), (9, 2347782), (18, 1173891), (27, 782594), (29, 728622), (54, 391297), (58, 364311), (87, 242874), (103, 205146), (131, 161298), (174, 121437), (206, 102573), (261, 80958), (262, 80649), (309, 68382), (393, 53766), (522, 40479), (618, 34191), (783, 26986), (786, 26883), (927, 22794), (1179, 17922), (1566, 13493), (1854, 11397), (2358, 8961), (2781, 7598), (2987, 7074), (3537, 5974), (3799, 5562)]