221872211

素因数分解:

${\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{1949}}^1$

素因数の和:2170

約数の個数: 16

約数和(自身を含む): 247104000

約数和(自身を除く): 25231789

約数列:

[1, 11, 79, 131, 869, 1441, 1949, 10349, 21439, 113839, 153971, 255319, 1693681, 2808509, 20170201, 221872211]

約数ペア:

[(1, 221872211), (11, 20170201), (79, 2808509), (131, 1693681), (869, 255319), (1441, 153971), (1949, 113839), (10349, 21439)]