19002808

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 39884040

約数和(自身を除く): 20881232

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 121, 134, 242, 268, 293, 484, 536, 586, 737, 968, 1172, 1474, 2344, 2948, 3223, 5896, 6446, 8107, 12892, 16214, 19631, 25784, 32428, 35453, 39262, 64856, 70906, 78524, 141812, 157048, 215941, 283624, 431882, 863764, 1727528, 2375351, 4750702, 9501404, 19002808]

約数ペア:

[(1, 19002808), (2, 9501404), (4, 4750702), (8, 2375351), (11, 1727528), (22, 863764), (44, 431882), (67, 283624), (88, 215941), (121, 157048), (134, 141812), (242, 78524), (268, 70906), (293, 64856), (484, 39262), (536, 35453), (586, 32428), (737, 25784), (968, 19631), (1172, 16214), (1474, 12892), (2344, 8107), (2948, 6446), (3223, 5896)]