18556538

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 96

約数和(自身を含む): 40476672

約数和(自身を除く): 21920134

約数列:

[1, 2, 7, 11, 13, 14, 22, 23, 26, 31, 46, 62, 77, 91, 143, 154, 161, 169, 182, 217, 253, 286, 299, 322, 338, 341, 403, 434, 506, 598, 682, 713, 806, 1001, 1183, 1426, 1771, 1859, 2002, 2093, 2366, 2387, 2821, 3289, 3542, 3718, 3887, 4186, 4433, 4774, 4991, 5239, 5642, 6578, 7774, 7843, 8866, 9269, 9982, 10478, 13013, 15686, 18538, 23023, 26026, 27209, 31031, 36673, 42757, 46046, 54418, 54901, 57629, 62062, 64883, 73346, 85514, 101959, 109802, 115258, 120497, 129766, 203918, 240994, 299299, 403403, 598598, 713713, 806806, 843479, 1325467, 1427426, 1686958, 2650934, 9278269, 18556538]

約数ペア:

[(1, 18556538), (2, 9278269), (7, 2650934), (11, 1686958), (13, 1427426), (14, 1325467), (22, 843479), (23, 806806), (26, 713713), (31, 598598), (46, 403403), (62, 299299), (77, 240994), (91, 203918), (143, 129766), (154, 120497), (161, 115258), (169, 109802), (182, 101959), (217, 85514), (253, 73346), (286, 64883), (299, 62062), (322, 57629), (338, 54901), (341, 54418), (403, 46046), (434, 42757), (506, 36673), (598, 31031), (682, 27209), (713, 26026), (806, 23023), (1001, 18538), (1183, 15686), (1426, 13013), (1771, 10478), (1859, 9982), (2002, 9269), (2093, 8866), (2366, 7843), (2387, 7774), (2821, 6578), (3289, 5642), (3542, 5239), (3718, 4991), (3887, 4774), (4186, 4433)]