18759136

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:547

約数の個数: 48

約数和(自身を含む): 40687920

約数和(自身を除く): 21928784

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 137, 176, 274, 352, 389, 548, 778, 1096, 1507, 1556, 2192, 3014, 3112, 4279, 4384, 6028, 6224, 8558, 12056, 12448, 17116, 24112, 34232, 48224, 53293, 68464, 106586, 136928, 213172, 426344, 586223, 852688, 1172446, 1705376, 2344892, 4689784, 9379568, 18759136]

約数ペア:

[(1, 18759136), (2, 9379568), (4, 4689784), (8, 2344892), (11, 1705376), (16, 1172446), (22, 852688), (32, 586223), (44, 426344), (88, 213172), (137, 136928), (176, 106586), (274, 68464), (352, 53293), (389, 48224), (548, 34232), (778, 24112), (1096, 17116), (1507, 12448), (1556, 12056), (2192, 8558), (3014, 6224), (3112, 6028), (4279, 4384)]