19798933

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 24785280

約数和(自身を除く): 4986347

約数列:

[1, 7, 11, 77, 389, 661, 2723, 4279, 4627, 7271, 29953, 50897, 257129, 1799903, 2828419, 19798933]

約数ペア:

[(1, 19798933), (7, 2828419), (11, 1799903), (77, 257129), (389, 50897), (661, 29953), (2723, 7271), (4279, 4627)]