21388158002

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1\times {\mathrm{121763}}^1$

素因数の和:123073

約数の個数: 16

約数和(自身を含む): 32560667712

約数和(自身を除く): 11172509710

約数列:

[1, 2, 71, 142, 1237, 2474, 87827, 121763, 175654, 243526, 8645173, 17290346, 150620831, 301241662, 10694079001, 21388158002]

約数ペア:

[(1, 21388158002), (2, 10694079001), (71, 301241662), (142, 150620831), (1237, 17290346), (2474, 8645173), (87827, 243526), (121763, 175654)]