21049980432848

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{3169}}^1\times {\mathrm{172049}}^1$

素因数の和:175372

約数の個数: 80

約数和(自身を含む): 43282824960000

約数和(自身を除く): 22232844527152

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 127, 152, 254, 304, 508, 1016, 2032, 2413, 3169, 4826, 6338, 9652, 12676, 19304, 25352, 38608, 50704, 60211, 120422, 172049, 240844, 344098, 402463, 481688, 688196, 804926, 963376, 1376392, 1609852, 2752784, 3219704, 3268931, 6439408, 6537862, 7646797, 13075724, 15293594, 21850223, 26151448, 30587188, 43700446, 52302896, 61174376, 87400892, 122348752, 174801784, 349603568, 415154237, 545223281, 830308474, 1090446562, 1660616948, 2180893124, 3321233896, 4361786248, 6642467792, 8723572496, 10359242339, 20718484678, 41436969356, 69243356687, 82873938712, 138486713374, 165747877424, 276973426748, 553946853496, 1107893706992, 1315623777053, 2631247554106, 5262495108212, 10524990216424, 21049980432848]

約数ペア:

[(1, 21049980432848), (2, 10524990216424), (4, 5262495108212), (8, 2631247554106), (16, 1315623777053), (19, 1107893706992), (38, 553946853496), (76, 276973426748), (127, 165747877424), (152, 138486713374), (254, 82873938712), (304, 69243356687), (508, 41436969356), (1016, 20718484678), (2032, 10359242339), (2413, 8723572496), (3169, 6642467792), (4826, 4361786248), (6338, 3321233896), (9652, 2180893124), (12676, 1660616948), (19304, 1090446562), (25352, 830308474), (38608, 545223281), (50704, 415154237), (60211, 349603568), (120422, 174801784), (172049, 122348752), (240844, 87400892), (344098, 61174376), (402463, 52302896), (481688, 43700446), (688196, 30587188), (804926, 26151448), (963376, 21850223), (1376392, 15293594), (1609852, 13075724), (2752784, 7646797), (3219704, 6537862), (3268931, 6439408)]