20817495867

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{16801853}}^1$

素因数の和:16801922

約数の個数: 16

約数和(自身を含む): 32259559680

約数和(自身を除く): 11442063813

約数列:

[1, 3, 7, 21, 59, 177, 413, 1239, 16801853, 50405559, 117612971, 352838913, 991309327, 2973927981, 6939165289, 20817495867]

約数ペア:

[(1, 20817495867), (3, 6939165289), (7, 2973927981), (21, 991309327), (59, 352838913), (177, 117612971), (413, 50405559), (1239, 16801853)]