20101557

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7307}}^1$

素因数の和:7448

約数の個数: 16

約数和(自身を含む): 30868992

約数和(自身を除く): 10767435

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7307, 21921, 51149, 153447, 957217, 2871651, 6700519, 20101557]

約数ペア:

[(1, 20101557), (3, 6700519), (7, 2871651), (21, 957217), (131, 153447), (393, 51149), (917, 21921), (2751, 7307)]