21221016

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20563}}^1$

素因数の和:20615

約数の個数: 32

約数和(自身を含む): 54288960

約数和(自身を除く): 33067944

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20563, 41126, 61689, 82252, 123378, 164504, 246756, 493512, 884209, 1768418, 2652627, 3536836, 5305254, 7073672, 10610508, 21221016]

約数ペア:

[(1, 21221016), (2, 10610508), (3, 7073672), (4, 5305254), (6, 3536836), (8, 2652627), (12, 1768418), (24, 884209), (43, 493512), (86, 246756), (129, 164504), (172, 123378), (258, 82252), (344, 61689), (516, 41126), (1032, 20563)]