21707868

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 63271936

約数和(自身を除く): 41564068

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 103, 156, 182, 193, 206, 273, 309, 364, 386, 412, 546, 579, 618, 721, 772, 1092, 1158, 1236, 1339, 1351, 1442, 2163, 2316, 2509, 2678, 2702, 2884, 4017, 4053, 4326, 5018, 5356, 5404, 7527, 8034, 8106, 8652, 9373, 10036, 15054, 16068, 16212, 17563, 18746, 19879, 28119, 30108, 35126, 37492, 39758, 52689, 56238, 59637, 70252, 79516, 105378, 112476, 119274, 139153, 210756, 238548, 258427, 278306, 417459, 516854, 556612, 775281, 834918, 1033708, 1550562, 1669836, 1808989, 3101124, 3617978, 5426967, 7235956, 10853934, 21707868]

約数ペア:

[(1, 21707868), (2, 10853934), (3, 7235956), (4, 5426967), (6, 3617978), (7, 3101124), (12, 1808989), (13, 1669836), (14, 1550562), (21, 1033708), (26, 834918), (28, 775281), (39, 556612), (42, 516854), (52, 417459), (78, 278306), (84, 258427), (91, 238548), (103, 210756), (156, 139153), (182, 119274), (193, 112476), (206, 105378), (273, 79516), (309, 70252), (364, 59637), (386, 56238), (412, 52689), (546, 39758), (579, 37492), (618, 35126), (721, 30108), (772, 28119), (1092, 19879), (1158, 18746), (1236, 17563), (1339, 16212), (1351, 16068), (1442, 15054), (2163, 10036), (2316, 9373), (2509, 8652), (2678, 8106), (2702, 8034), (2884, 7527), (4017, 5404), (4053, 5356), (4326, 5018)]