21657216

素因数分解:

$2^7\times 3^1\times 7^2\times {\mathrm{1151}}^1$

素因数の和:1182

約数の個数: 96

約数和(自身を含む): 66977280

約数和(自身を除く): 45320064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 64, 84, 96, 98, 112, 128, 147, 168, 192, 196, 224, 294, 336, 384, 392, 448, 588, 672, 784, 896, 1151, 1176, 1344, 1568, 2302, 2352, 2688, 3136, 3453, 4604, 4704, 6272, 6906, 8057, 9208, 9408, 13812, 16114, 18416, 18816, 24171, 27624, 32228, 36832, 48342, 55248, 56399, 64456, 73664, 96684, 110496, 112798, 128912, 147328, 169197, 193368, 220992, 225596, 257824, 338394, 386736, 441984, 451192, 515648, 676788, 773472, 902384, 1031296, 1353576, 1546944, 1804768, 2707152, 3093888, 3609536, 5414304, 7219072, 10828608, 21657216]

約数ペア:

[(1, 21657216), (2, 10828608), (3, 7219072), (4, 5414304), (6, 3609536), (7, 3093888), (8, 2707152), (12, 1804768), (14, 1546944), (16, 1353576), (21, 1031296), (24, 902384), (28, 773472), (32, 676788), (42, 515648), (48, 451192), (49, 441984), (56, 386736), (64, 338394), (84, 257824), (96, 225596), (98, 220992), (112, 193368), (128, 169197), (147, 147328), (168, 128912), (192, 112798), (196, 110496), (224, 96684), (294, 73664), (336, 64456), (384, 56399), (392, 55248), (448, 48342), (588, 36832), (672, 32228), (784, 27624), (896, 24171), (1151, 18816), (1176, 18416), (1344, 16114), (1568, 13812), (2302, 9408), (2352, 9208), (2688, 8057), (3136, 6906), (3453, 6272), (4604, 4704)]