83384721

素因数分解:

$3^5\times 7^2\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:225

約数の個数: 72

約数和(自身を含む): 149385600

約数和(自身を除く): 66000879

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 81, 141, 147, 149, 189, 243, 329, 423, 441, 447, 567, 987, 1043, 1269, 1323, 1341, 1701, 2303, 2961, 3129, 3807, 3969, 4023, 6909, 7003, 7301, 8883, 9387, 11421, 11907, 12069, 20727, 21009, 21903, 26649, 28161, 36207, 49021, 62181, 63027, 65709, 79947, 84483, 147063, 186543, 189081, 197127, 253449, 343147, 441189, 559629, 567243, 591381, 1029441, 1323567, 1701729, 1774143, 3088323, 3970701, 9264969, 11912103, 27794907, 83384721]

約数ペア:

[(1, 83384721), (3, 27794907), (7, 11912103), (9, 9264969), (21, 3970701), (27, 3088323), (47, 1774143), (49, 1701729), (63, 1323567), (81, 1029441), (141, 591381), (147, 567243), (149, 559629), (189, 441189), (243, 343147), (329, 253449), (423, 197127), (441, 189081), (447, 186543), (567, 147063), (987, 84483), (1043, 79947), (1269, 65709), (1323, 63027), (1341, 62181), (1701, 49021), (2303, 36207), (2961, 28161), (3129, 26649), (3807, 21903), (3969, 21009), (4023, 20727), (6909, 12069), (7003, 11907), (7301, 11421), (8883, 9387)]