21172704

素因数分解:

$2^5\times 3^1\times 7^3\times {\mathrm{643}}^1$

素因数の和:677

約数の個数: 96

約数和(自身を含む): 64915200

約数和(自身を除く): 43742496

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 343, 392, 588, 643, 672, 686, 784, 1029, 1176, 1286, 1372, 1568, 1929, 2058, 2352, 2572, 2744, 3858, 4116, 4501, 4704, 5144, 5488, 7716, 8232, 9002, 10288, 10976, 13503, 15432, 16464, 18004, 20576, 27006, 30864, 31507, 32928, 36008, 54012, 61728, 63014, 72016, 94521, 108024, 126028, 144032, 189042, 216048, 220549, 252056, 378084, 432096, 441098, 504112, 661647, 756168, 882196, 1008224, 1323294, 1512336, 1764392, 2646588, 3024672, 3528784, 5293176, 7057568, 10586352, 21172704]

約数ペア:

[(1, 21172704), (2, 10586352), (3, 7057568), (4, 5293176), (6, 3528784), (7, 3024672), (8, 2646588), (12, 1764392), (14, 1512336), (16, 1323294), (21, 1008224), (24, 882196), (28, 756168), (32, 661647), (42, 504112), (48, 441098), (49, 432096), (56, 378084), (84, 252056), (96, 220549), (98, 216048), (112, 189042), (147, 144032), (168, 126028), (196, 108024), (224, 94521), (294, 72016), (336, 63014), (343, 61728), (392, 54012), (588, 36008), (643, 32928), (672, 31507), (686, 30864), (784, 27006), (1029, 20576), (1176, 18004), (1286, 16464), (1372, 15432), (1568, 13503), (1929, 10976), (2058, 10288), (2352, 9002), (2572, 8232), (2744, 7716), (3858, 5488), (4116, 5144), (4501, 4704)]