18517928

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16187}}^1$

素因数の和:16217

約数の個数: 32

約数和(自身を含む): 40793760

約数和(自身を除く): 22275832

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 16187, 32374, 64748, 129496, 178057, 210431, 356114, 420862, 712228, 841724, 1424456, 1683448, 2314741, 4629482, 9258964, 18517928]

約数ペア:

[(1, 18517928), (2, 9258964), (4, 4629482), (8, 2314741), (11, 1683448), (13, 1424456), (22, 841724), (26, 712228), (44, 420862), (52, 356114), (88, 210431), (104, 178057), (143, 129496), (286, 64748), (572, 32374), (1144, 16187)]