21267136

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1777}}^1$

素因数の和:1817

約数の個数: 56

約数和(自身を含む): 48774096

約数和(自身を除く): 27506960

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 136, 176, 187, 272, 352, 374, 544, 704, 748, 1088, 1496, 1777, 2992, 3554, 5984, 7108, 11968, 14216, 19547, 28432, 30209, 39094, 56864, 60418, 78188, 113728, 120836, 156376, 241672, 312752, 332299, 483344, 625504, 664598, 966688, 1251008, 1329196, 1933376, 2658392, 5316784, 10633568, 21267136]

約数ペア:

[(1, 21267136), (2, 10633568), (4, 5316784), (8, 2658392), (11, 1933376), (16, 1329196), (17, 1251008), (22, 966688), (32, 664598), (34, 625504), (44, 483344), (64, 332299), (68, 312752), (88, 241672), (136, 156376), (176, 120836), (187, 113728), (272, 78188), (352, 60418), (374, 56864), (544, 39094), (704, 30209), (748, 28432), (1088, 19547), (1496, 14216), (1777, 11968), (2992, 7108), (3554, 5984)]