21842476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 42434560

約数和(自身を除く): 20592084

約数列:

[1, 2, 4, 19, 31, 38, 62, 73, 76, 124, 127, 146, 254, 292, 508, 589, 1178, 1387, 2263, 2356, 2413, 2774, 3937, 4526, 4826, 5548, 7874, 9052, 9271, 9652, 15748, 18542, 37084, 42997, 74803, 85994, 149606, 171988, 176149, 287401, 299212, 352298, 574802, 704596, 1149604, 5460619, 10921238, 21842476]

約数ペア:

[(1, 21842476), (2, 10921238), (4, 5460619), (19, 1149604), (31, 704596), (38, 574802), (62, 352298), (73, 299212), (76, 287401), (124, 176149), (127, 171988), (146, 149606), (254, 85994), (292, 74803), (508, 42997), (589, 37084), (1178, 18542), (1387, 15748), (2263, 9652), (2356, 9271), (2413, 9052), (2774, 7874), (3937, 5548), (4526, 4826)]