21030144

素因数分解:

$2^8\times 3^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:355

約数の個数: 72

約数和(自身を含む): 56659680

約数和(自身を除く): 35629536

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 139, 192, 197, 256, 278, 384, 394, 417, 556, 591, 768, 788, 834, 1112, 1182, 1576, 1668, 2224, 2364, 3152, 3336, 4448, 4728, 6304, 6672, 8896, 9456, 12608, 13344, 17792, 18912, 25216, 26688, 27383, 35584, 37824, 50432, 53376, 54766, 75648, 82149, 106752, 109532, 151296, 164298, 219064, 328596, 438128, 657192, 876256, 1314384, 1752512, 2628768, 3505024, 5257536, 7010048, 10515072, 21030144]

約数ペア:

[(1, 21030144), (2, 10515072), (3, 7010048), (4, 5257536), (6, 3505024), (8, 2628768), (12, 1752512), (16, 1314384), (24, 876256), (32, 657192), (48, 438128), (64, 328596), (96, 219064), (128, 164298), (139, 151296), (192, 109532), (197, 106752), (256, 82149), (278, 75648), (384, 54766), (394, 53376), (417, 50432), (556, 37824), (591, 35584), (768, 27383), (788, 26688), (834, 25216), (1112, 18912), (1182, 17792), (1576, 13344), (1668, 12608), (2224, 9456), (2364, 8896), (3152, 6672), (3336, 6304), (4448, 4728)]