221574353

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{20123}}^1$

素因数の和:20165

約数の個数: 24

約数和(自身を含む): 299767104

約数和(自身を除く): 78192751

約数列:

[1, 7, 11, 13, 77, 91, 121, 143, 847, 1001, 1573, 11011, 20123, 140861, 221353, 261599, 1549471, 1831193, 2434883, 2877589, 17044181, 20143123, 31653479, 221574353]

約数ペア:

[(1, 221574353), (7, 31653479), (11, 20143123), (13, 17044181), (77, 2877589), (91, 2434883), (121, 1831193), (143, 1549471), (847, 261599), (1001, 221353), (1573, 140861), (11011, 20123)]