21080286

素因数分解:

$2^1\times 3^2\times {\mathrm{547}}^1\times {\mathrm{2141}}^1$

素因数の和:2696

約数の個数: 24

約数和(自身を含む): 45778824

約数和(自身を除く): 24698538

約数列:

[1, 2, 3, 6, 9, 18, 547, 1094, 1641, 2141, 3282, 4282, 4923, 6423, 9846, 12846, 19269, 38538, 1171127, 2342254, 3513381, 7026762, 10540143, 21080286]

約数ペア:

[(1, 21080286), (2, 10540143), (3, 7026762), (6, 3513381), (9, 2342254), (18, 1171127), (547, 38538), (1094, 19269), (1641, 12846), (2141, 9846), (3282, 6423), (4282, 4923)]