21671153

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1283}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 26296320

約数和(自身を除く): 4625167

約数列:

[1, 7, 19, 127, 133, 889, 1283, 2413, 8981, 16891, 24377, 162941, 170639, 1140587, 3095879, 21671153]

約数ペア:

[(1, 21671153), (7, 3095879), (19, 1140587), (127, 170639), (133, 162941), (889, 24377), (1283, 16891), (2413, 8981)]