21031772164

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{426193}}^1$

素因数の和:426296

約数の個数: 36

約数和(自身を含む): 40400634036

約数和(自身を除く): 19368861872

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 169, 292, 338, 676, 949, 1898, 3796, 12337, 24674, 49348, 426193, 852386, 1704772, 5540509, 11081018, 22162036, 31112089, 62224178, 72026617, 124448356, 144053234, 288106468, 404457157, 808914314, 1617828628, 5257943041, 10515886082, 21031772164]

約数ペア:

[(1, 21031772164), (2, 10515886082), (4, 5257943041), (13, 1617828628), (26, 808914314), (52, 404457157), (73, 288106468), (146, 144053234), (169, 124448356), (292, 72026617), (338, 62224178), (676, 31112089), (949, 22162036), (1898, 11081018), (3796, 5540509), (12337, 1704772), (24674, 852386), (49348, 426193)]