21031858155

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{8311}}^1$

素因数の和:8657

約数の個数: 96

約数和(自身を含む): 42845234688

約数和(自身を除く): 21813376533

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 77, 105, 147, 165, 231, 245, 313, 385, 539, 735, 939, 1155, 1565, 1617, 2191, 2695, 3443, 4695, 6573, 8085, 8311, 10329, 10955, 15337, 17215, 24101, 24933, 32865, 41555, 46011, 51645, 58177, 72303, 76685, 91421, 120505, 124665, 168707, 174531, 230055, 274263, 290885, 361515, 407239, 457105, 506121, 639947, 843535, 872655, 1221717, 1371315, 1919841, 2036195, 2530605, 2601343, 3199735, 4479629, 6108585, 7804029, 9599205, 13006715, 13438887, 18209401, 22398145, 28614773, 39020145, 54628203, 67194435, 85844319, 91047005, 127465807, 143073865, 200303411, 273141015, 382397421, 429221595, 600910233, 637329035, 1001517055, 1402123877, 1911987105, 3004551165, 4206371631, 7010619385, 21031858155]

約数ペア:

[(1, 21031858155), (3, 7010619385), (5, 4206371631), (7, 3004551165), (11, 1911987105), (15, 1402123877), (21, 1001517055), (33, 637329035), (35, 600910233), (49, 429221595), (55, 382397421), (77, 273141015), (105, 200303411), (147, 143073865), (165, 127465807), (231, 91047005), (245, 85844319), (313, 67194435), (385, 54628203), (539, 39020145), (735, 28614773), (939, 22398145), (1155, 18209401), (1565, 13438887), (1617, 13006715), (2191, 9599205), (2695, 7804029), (3443, 6108585), (4695, 4479629), (6573, 3199735), (8085, 2601343), (8311, 2530605), (10329, 2036195), (10955, 1919841), (15337, 1371315), (17215, 1221717), (24101, 872655), (24933, 843535), (32865, 639947), (41555, 506121), (46011, 457105), (51645, 407239), (58177, 361515), (72303, 290885), (76685, 274263), (91421, 230055), (120505, 174531), (124665, 168707)]