20187054741

素因数分解:

$3^1\times 7^3\times {\mathrm{47}}^2\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:308

約数の個数: 96

約数和(自身を含む): 32760806400

約数和(自身を除く): 12573751659

約数列:

[1, 3, 7, 21, 47, 49, 83, 107, 141, 147, 249, 321, 329, 343, 581, 749, 987, 1029, 1743, 2209, 2247, 2303, 3901, 4067, 5029, 5243, 6627, 6909, 8881, 11703, 12201, 15087, 15463, 15729, 16121, 26643, 27307, 28469, 35203, 36701, 46389, 48363, 62167, 81921, 85407, 105609, 108241, 110103, 183347, 186501, 191149, 236363, 246421, 324723, 417407, 435169, 550041, 573447, 709089, 739263, 757687, 1252221, 1283429, 1305507, 1338043, 1654541, 1724947, 2273061, 2921849, 3046183, 3850287, 4014129, 4963623, 5174841, 8765547, 8984003, 9138549, 11581787, 19618129, 20452943, 26952009, 34745361, 58854387, 61358829, 62888021, 81072509, 137326903, 143170601, 188664063, 243217527, 411980709, 429511803, 961288321, 2883864963, 6729018247, 20187054741]

約数ペア:

[(1, 20187054741), (3, 6729018247), (7, 2883864963), (21, 961288321), (47, 429511803), (49, 411980709), (83, 243217527), (107, 188664063), (141, 143170601), (147, 137326903), (249, 81072509), (321, 62888021), (329, 61358829), (343, 58854387), (581, 34745361), (749, 26952009), (987, 20452943), (1029, 19618129), (1743, 11581787), (2209, 9138549), (2247, 8984003), (2303, 8765547), (3901, 5174841), (4067, 4963623), (5029, 4014129), (5243, 3850287), (6627, 3046183), (6909, 2921849), (8881, 2273061), (11703, 1724947), (12201, 1654541), (15087, 1338043), (15463, 1305507), (15729, 1283429), (16121, 1252221), (26643, 757687), (27307, 739263), (28469, 709089), (35203, 573447), (36701, 550041), (46389, 435169), (48363, 417407), (62167, 324723), (81921, 246421), (85407, 236363), (105609, 191149), (108241, 186501), (110103, 183347)]