21025440472

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{47819}}^1$

素因数の和:47956

約数の個数: 64

約数和(自身を含む): 43227367200

約数和(自身を除く): 22201926728

約数列:

[1, 2, 4, 8, 17, 34, 53, 61, 68, 106, 122, 136, 212, 244, 424, 488, 901, 1037, 1802, 2074, 3233, 3604, 4148, 6466, 7208, 8296, 12932, 25864, 47819, 54961, 95638, 109922, 191276, 219844, 382552, 439688, 812923, 1625846, 2534407, 2916959, 3251692, 5068814, 5833918, 6503384, 10137628, 11667836, 20275256, 23335672, 43084919, 49588303, 86169838, 99176606, 154598827, 172339676, 198353212, 309197654, 344679352, 396706424, 618395308, 1236790616, 2628180059, 5256360118, 10512720236, 21025440472]

約数ペア:

[(1, 21025440472), (2, 10512720236), (4, 5256360118), (8, 2628180059), (17, 1236790616), (34, 618395308), (53, 396706424), (61, 344679352), (68, 309197654), (106, 198353212), (122, 172339676), (136, 154598827), (212, 99176606), (244, 86169838), (424, 49588303), (488, 43084919), (901, 23335672), (1037, 20275256), (1802, 11667836), (2074, 10137628), (3233, 6503384), (3604, 5833918), (4148, 5068814), (6466, 3251692), (7208, 2916959), (8296, 2534407), (12932, 1625846), (25864, 812923), (47819, 439688), (54961, 382552), (95638, 219844), (109922, 191276)]