21810010

素因数分解:

$2^1\times 5^1\times {\mathrm{859}}^1\times {\mathrm{2539}}^1$

素因数の和:3405

約数の個数: 16

約数和(自身を含む): 39319200

約数和(自身を除く): 17509190

約数列:

[1, 2, 5, 10, 859, 1718, 2539, 4295, 5078, 8590, 12695, 25390, 2181001, 4362002, 10905005, 21810010]

約数ペア:

[(1, 21810010), (2, 10905005), (5, 4362002), (10, 2181001), (859, 25390), (1718, 12695), (2539, 8590), (4295, 5078)]