21795191

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{311}}^1$

素因数の和:622

約数の個数: 16

約数和(自身を含む): 24979968

約数和(自身を除く): 3184777

約数列:

[1, 11, 23, 253, 277, 311, 3047, 3421, 6371, 7153, 70081, 78683, 86147, 947617, 1981381, 21795191]

約数ペア:

[(1, 21795191), (11, 1981381), (23, 947617), (253, 86147), (277, 78683), (311, 70081), (3047, 7153), (3421, 6371)]