21478776

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{81359}}^1$

素因数の和:81379

約数の個数: 32

約数和(自身を含む): 58579200

約数和(自身を除く): 37100424

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264, 81359, 162718, 244077, 325436, 488154, 650872, 894949, 976308, 1789898, 1952616, 2684847, 3579796, 5369694, 7159592, 10739388, 21478776]

約数ペア:

[(1, 21478776), (2, 10739388), (3, 7159592), (4, 5369694), (6, 3579796), (8, 2684847), (11, 1952616), (12, 1789898), (22, 976308), (24, 894949), (33, 650872), (44, 488154), (66, 325436), (88, 244077), (132, 162718), (264, 81359)]