21508203738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1279}}^1\times {\mathrm{400391}}^1$

素因数の和:401682

約数の個数: 32

約数和(自身を含む): 49200168960

約数和(自身を除く): 27691965222

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1279, 2558, 3837, 7674, 8953, 17906, 26859, 53718, 400391, 800782, 1201173, 2402346, 2802737, 5605474, 8408211, 16816422, 512100089, 1024200178, 1536300267, 3072600534, 3584700623, 7169401246, 10754101869, 21508203738]

約数ペア:

[(1, 21508203738), (2, 10754101869), (3, 7169401246), (6, 3584700623), (7, 3072600534), (14, 1536300267), (21, 1024200178), (42, 512100089), (1279, 16816422), (2558, 8408211), (3837, 5605474), (7674, 2802737), (8953, 2402346), (17906, 1201173), (26859, 800782), (53718, 400391)]