21356940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32359}}^1$

素因数の和:32382

約数の個数: 48

約数和(自身を含む): 65237760

約数和(自身を除く): 43880820

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32359, 64718, 97077, 129436, 161795, 194154, 323590, 355949, 388308, 485385, 647180, 711898, 970770, 1067847, 1423796, 1779745, 1941540, 2135694, 3559490, 4271388, 5339235, 7118980, 10678470, 21356940]

約数ペア:

[(1, 21356940), (2, 10678470), (3, 7118980), (4, 5339235), (5, 4271388), (6, 3559490), (10, 2135694), (11, 1941540), (12, 1779745), (15, 1423796), (20, 1067847), (22, 970770), (30, 711898), (33, 647180), (44, 485385), (55, 388308), (60, 355949), (66, 323590), (110, 194154), (132, 161795), (165, 129436), (220, 97077), (330, 64718), (660, 32359)]