21081834

素因数分解:

$2^1\times 3^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 47017152

約数和(自身を除く): 25935318

約数列:

[1, 2, 3, 6, 9, 18, 83, 103, 137, 166, 206, 249, 274, 309, 411, 498, 618, 747, 822, 927, 1233, 1494, 1854, 2466, 8549, 11371, 14111, 17098, 22742, 25647, 28222, 34113, 42333, 51294, 68226, 76941, 84666, 102339, 126999, 153882, 204678, 253998, 1171213, 2342426, 3513639, 7027278, 10540917, 21081834]

約数ペア:

[(1, 21081834), (2, 10540917), (3, 7027278), (6, 3513639), (9, 2342426), (18, 1171213), (83, 253998), (103, 204678), (137, 153882), (166, 126999), (206, 102339), (249, 84666), (274, 76941), (309, 68226), (411, 51294), (498, 42333), (618, 34113), (747, 28222), (822, 25647), (927, 22742), (1233, 17098), (1494, 14111), (1854, 11371), (2466, 8549)]