20499984

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{4909}}^1$

素因数の和:4952

約数の個数: 60

約数和(自身を含む): 59361900

約数和(自身を除く): 38861916

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 48, 58, 72, 87, 116, 144, 174, 232, 261, 348, 464, 522, 696, 1044, 1392, 2088, 4176, 4909, 9818, 14727, 19636, 29454, 39272, 44181, 58908, 78544, 88362, 117816, 142361, 176724, 235632, 284722, 353448, 427083, 569444, 706896, 854166, 1138888, 1281249, 1708332, 2277776, 2562498, 3416664, 5124996, 6833328, 10249992, 20499984]

約数ペア:

[(1, 20499984), (2, 10249992), (3, 6833328), (4, 5124996), (6, 3416664), (8, 2562498), (9, 2277776), (12, 1708332), (16, 1281249), (18, 1138888), (24, 854166), (29, 706896), (36, 569444), (48, 427083), (58, 353448), (72, 284722), (87, 235632), (116, 176724), (144, 142361), (174, 117816), (232, 88362), (261, 78544), (348, 58908), (464, 44181), (522, 39272), (696, 29454), (1044, 19636), (1392, 14727), (2088, 9818), (4176, 4909)]