21468928

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{6451}}^1$

素因数の和:6480

約数の個数: 36

約数和(自身を含む): 46157608

約数和(自身を除く): 24688680

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 6451, 12902, 25804, 51608, 83863, 103216, 167726, 206432, 335452, 412864, 670904, 825728, 1341808, 1651456, 2683616, 5367232, 10734464, 21468928]

約数ペア:

[(1, 21468928), (2, 10734464), (4, 5367232), (8, 2683616), (13, 1651456), (16, 1341808), (26, 825728), (32, 670904), (52, 412864), (64, 335452), (104, 206432), (128, 167726), (208, 103216), (256, 83863), (416, 51608), (832, 25804), (1664, 12902), (3328, 6451)]