18742658

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{1889}}^1$

素因数の和:1954

約数の個数: 24

約数和(自身を含む): 31672620

約数和(自身を除く): 12929962

約数列:

[1, 2, 11, 22, 41, 82, 121, 242, 451, 902, 1889, 3778, 4961, 9922, 20779, 41558, 77449, 154898, 228569, 457138, 851939, 1703878, 9371329, 18742658]

約数ペア:

[(1, 18742658), (2, 9371329), (11, 1703878), (22, 851939), (41, 457138), (82, 228569), (121, 154898), (242, 77449), (451, 41558), (902, 20779), (1889, 9922), (3778, 4961)]