21000298462

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{8581}}^1$

素因数の和:8849

約数の個数: 64

約数和(自身を含む): 38062886400

約数和(自身を除く): 17062587938

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 143, 199, 286, 398, 473, 559, 946, 1118, 2189, 2587, 4378, 5174, 6149, 8557, 8581, 12298, 17114, 17162, 28457, 56914, 94127, 94391, 111241, 111553, 188254, 188782, 222482, 223106, 368983, 737966, 1223651, 1227083, 1707619, 2447302, 2454166, 3415238, 4058813, 4796779, 8117626, 9593558, 18783809, 22199047, 37567618, 44398094, 52764569, 73427617, 105529138, 146855234, 244189517, 488379034, 807703787, 954559021, 1615407574, 1909118042, 10500149231, 21000298462]

約数ペア:

[(1, 21000298462), (2, 10500149231), (11, 1909118042), (13, 1615407574), (22, 954559021), (26, 807703787), (43, 488379034), (86, 244189517), (143, 146855234), (199, 105529138), (286, 73427617), (398, 52764569), (473, 44398094), (559, 37567618), (946, 22199047), (1118, 18783809), (2189, 9593558), (2587, 8117626), (4378, 4796779), (5174, 4058813), (6149, 3415238), (8557, 2454166), (8581, 2447302), (12298, 1707619), (17114, 1227083), (17162, 1223651), (28457, 737966), (56914, 368983), (94127, 223106), (94391, 222482), (111241, 188782), (111553, 188254)]