21086156

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1093}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 46315584

約数和(自身を除く): 25229428

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 53, 91, 106, 182, 212, 364, 371, 689, 742, 1093, 1378, 1484, 2186, 2756, 4372, 4823, 7651, 9646, 14209, 15302, 19292, 28418, 30604, 56836, 57929, 99463, 115858, 198926, 231716, 397852, 405503, 753077, 811006, 1506154, 1622012, 3012308, 5271539, 10543078, 21086156]

約数ペア:

[(1, 21086156), (2, 10543078), (4, 5271539), (7, 3012308), (13, 1622012), (14, 1506154), (26, 811006), (28, 753077), (52, 405503), (53, 397852), (91, 231716), (106, 198926), (182, 115858), (212, 99463), (364, 57929), (371, 56836), (689, 30604), (742, 28418), (1093, 19292), (1378, 15302), (1484, 14209), (2186, 9646), (2756, 7651), (4372, 4823)]