19205505

素因数分解:

$3^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1$

素因数の和:513

約数の個数: 56

約数和(自身を含む): 37774080

約数和(自身を除く): 18568575

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 479, 495, 729, 891, 1215, 1437, 1485, 2395, 2673, 3645, 4311, 4455, 5269, 7185, 8019, 12933, 13365, 15807, 21555, 26345, 38799, 40095, 47421, 64665, 79035, 116397, 142263, 193995, 237105, 349191, 426789, 581985, 711315, 1280367, 1745955, 2133945, 3841101, 6401835, 19205505]

約数ペア:

[(1, 19205505), (3, 6401835), (5, 3841101), (9, 2133945), (11, 1745955), (15, 1280367), (27, 711315), (33, 581985), (45, 426789), (55, 349191), (81, 237105), (99, 193995), (135, 142263), (165, 116397), (243, 79035), (297, 64665), (405, 47421), (479, 40095), (495, 38799), (729, 26345), (891, 21555), (1215, 15807), (1437, 13365), (1485, 12933), (2395, 8019), (2673, 7185), (3645, 5269), (4311, 4455)]