21154672

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^2\times {\mathrm{223}}^1$

素因数の和:267

約数の個数: 90

約数和(自身を含む): 52642464

約数和(自身を除く): 31487792

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 49, 56, 77, 88, 98, 112, 121, 154, 176, 196, 223, 242, 308, 392, 446, 484, 539, 616, 784, 847, 892, 968, 1078, 1232, 1561, 1694, 1784, 1936, 2156, 2453, 3122, 3388, 3568, 4312, 4906, 5929, 6244, 6776, 8624, 9812, 10927, 11858, 12488, 13552, 17171, 19624, 21854, 23716, 24976, 26983, 34342, 39248, 43708, 47432, 53966, 68684, 87416, 94864, 107932, 120197, 137368, 174832, 188881, 215864, 240394, 274736, 377762, 431728, 480788, 755524, 961576, 1322167, 1511048, 1923152, 2644334, 3022096, 5288668, 10577336, 21154672]

約数ペア:

[(1, 21154672), (2, 10577336), (4, 5288668), (7, 3022096), (8, 2644334), (11, 1923152), (14, 1511048), (16, 1322167), (22, 961576), (28, 755524), (44, 480788), (49, 431728), (56, 377762), (77, 274736), (88, 240394), (98, 215864), (112, 188881), (121, 174832), (154, 137368), (176, 120197), (196, 107932), (223, 94864), (242, 87416), (308, 68684), (392, 53966), (446, 47432), (484, 43708), (539, 39248), (616, 34342), (784, 26983), (847, 24976), (892, 23716), (968, 21854), (1078, 19624), (1232, 17171), (1561, 13552), (1694, 12488), (1784, 11858), (1936, 10927), (2156, 9812), (2453, 8624), (3122, 6776), (3388, 6244), (3568, 5929), (4312, 4906)]