21205296

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 120

約数和(自身を含む): 68800160

約数和(自身を除く): 47594864

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 109, 112, 126, 144, 168, 193, 218, 252, 327, 336, 386, 436, 504, 579, 654, 763, 772, 872, 981, 1008, 1158, 1308, 1351, 1526, 1544, 1737, 1744, 1962, 2289, 2316, 2616, 2702, 3052, 3088, 3474, 3924, 4053, 4578, 4632, 5232, 5404, 6104, 6867, 6948, 7848, 8106, 9156, 9264, 10808, 12159, 12208, 13734, 13896, 15696, 16212, 18312, 21037, 21616, 24318, 27468, 27792, 32424, 36624, 42074, 48636, 54936, 63111, 64848, 84148, 97272, 109872, 126222, 147259, 168296, 189333, 194544, 252444, 294518, 336592, 378666, 441777, 504888, 589036, 757332, 883554, 1009776, 1178072, 1325331, 1514664, 1767108, 2356144, 2650662, 3029328, 3534216, 5301324, 7068432, 10602648, 21205296]

約数ペア:

[(1, 21205296), (2, 10602648), (3, 7068432), (4, 5301324), (6, 3534216), (7, 3029328), (8, 2650662), (9, 2356144), (12, 1767108), (14, 1514664), (16, 1325331), (18, 1178072), (21, 1009776), (24, 883554), (28, 757332), (36, 589036), (42, 504888), (48, 441777), (56, 378666), (63, 336592), (72, 294518), (84, 252444), (109, 194544), (112, 189333), (126, 168296), (144, 147259), (168, 126222), (193, 109872), (218, 97272), (252, 84148), (327, 64848), (336, 63111), (386, 54936), (436, 48636), (504, 42074), (579, 36624), (654, 32424), (763, 27792), (772, 27468), (872, 24318), (981, 21616), (1008, 21037), (1158, 18312), (1308, 16212), (1351, 15696), (1526, 13896), (1544, 13734), (1737, 12208), (1744, 12159), (1962, 10808), (2289, 9264), (2316, 9156), (2616, 8106), (2702, 7848), (3052, 6948), (3088, 6867), (3474, 6104), (3924, 5404), (4053, 5232), (4578, 4632)]