21187008

素因数分解:

$2^6\times 3^4\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:152

約数の個数: 140

約数和(自身を含む): 64787272

約数和(自身を除く): 43600264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 61, 64, 67, 72, 81, 96, 108, 122, 134, 144, 162, 183, 192, 201, 216, 244, 268, 288, 324, 366, 402, 432, 488, 536, 549, 576, 603, 648, 732, 804, 864, 976, 1072, 1098, 1206, 1296, 1464, 1608, 1647, 1728, 1809, 1952, 2144, 2196, 2412, 2592, 2928, 3216, 3294, 3618, 3904, 4087, 4288, 4392, 4824, 4941, 5184, 5427, 5856, 6432, 6588, 7236, 8174, 8784, 9648, 9882, 10854, 11712, 12261, 12864, 13176, 14472, 16348, 17568, 19296, 19764, 21708, 24522, 26352, 28944, 32696, 35136, 36783, 38592, 39528, 43416, 49044, 52704, 57888, 65392, 73566, 79056, 86832, 98088, 105408, 110349, 115776, 130784, 147132, 158112, 173664, 196176, 220698, 261568, 294264, 316224, 331047, 347328, 392352, 441396, 588528, 662094, 784704, 882792, 1177056, 1324188, 1765584, 2354112, 2648376, 3531168, 5296752, 7062336, 10593504, 21187008]

約数ペア:

[(1, 21187008), (2, 10593504), (3, 7062336), (4, 5296752), (6, 3531168), (8, 2648376), (9, 2354112), (12, 1765584), (16, 1324188), (18, 1177056), (24, 882792), (27, 784704), (32, 662094), (36, 588528), (48, 441396), (54, 392352), (61, 347328), (64, 331047), (67, 316224), (72, 294264), (81, 261568), (96, 220698), (108, 196176), (122, 173664), (134, 158112), (144, 147132), (162, 130784), (183, 115776), (192, 110349), (201, 105408), (216, 98088), (244, 86832), (268, 79056), (288, 73566), (324, 65392), (366, 57888), (402, 52704), (432, 49044), (488, 43416), (536, 39528), (549, 38592), (576, 36783), (603, 35136), (648, 32696), (732, 28944), (804, 26352), (864, 24522), (976, 21708), (1072, 19764), (1098, 19296), (1206, 17568), (1296, 16348), (1464, 14472), (1608, 13176), (1647, 12864), (1728, 12261), (1809, 11712), (1952, 10854), (2144, 9882), (2196, 9648), (2412, 8784), (2592, 8174), (2928, 7236), (3216, 6588), (3294, 6432), (3618, 5856), (3904, 5427), (4087, 5184), (4288, 4941), (4392, 4824)]