21654780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1097}}^1$

素因数の和:1163

約数の個数: 96

約数和(自身を含む): 70834176

約数和(自身を除く): 49179396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1097, 1316, 1410, 1645, 1974, 2194, 2820, 3290, 3291, 3948, 4388, 4935, 5485, 6580, 6582, 7679, 9870, 10970, 13164, 15358, 16455, 19740, 21940, 23037, 30716, 32910, 38395, 46074, 51559, 65820, 76790, 92148, 103118, 115185, 153580, 154677, 206236, 230370, 257795, 309354, 360913, 460740, 515590, 618708, 721826, 773385, 1031180, 1082739, 1443652, 1546770, 1804565, 2165478, 3093540, 3609130, 4330956, 5413695, 7218260, 10827390, 21654780]

約数ペア:

[(1, 21654780), (2, 10827390), (3, 7218260), (4, 5413695), (5, 4330956), (6, 3609130), (7, 3093540), (10, 2165478), (12, 1804565), (14, 1546770), (15, 1443652), (20, 1082739), (21, 1031180), (28, 773385), (30, 721826), (35, 618708), (42, 515590), (47, 460740), (60, 360913), (70, 309354), (84, 257795), (94, 230370), (105, 206236), (140, 154677), (141, 153580), (188, 115185), (210, 103118), (235, 92148), (282, 76790), (329, 65820), (420, 51559), (470, 46074), (564, 38395), (658, 32910), (705, 30716), (940, 23037), (987, 21940), (1097, 19740), (1316, 16455), (1410, 15358), (1645, 13164), (1974, 10970), (2194, 9870), (2820, 7679), (3290, 6582), (3291, 6580), (3948, 5485), (4388, 4935)]