21120805612

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2188231}}^1$

素因数の和:2188381

約数の個数: 24

約数和(自身を含む): 39213117440

約数和(自身を除く): 18092311828

約数列:

[1, 2, 4, 19, 38, 76, 127, 254, 508, 2413, 4826, 9652, 2188231, 4376462, 8752924, 41576389, 83152778, 166305556, 277905337, 555810674, 1111621348, 5280201403, 10560402806, 21120805612]

約数ペア:

[(1, 21120805612), (2, 10560402806), (4, 5280201403), (19, 1111621348), (38, 555810674), (76, 277905337), (127, 166305556), (254, 83152778), (508, 41576389), (2413, 8752924), (4826, 4376462), (9652, 2188231)]