21902254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{9857}}^1$

素因数の和:9971

約数の個数: 16

約数和(自身を含む): 36198576

約数和(自身を除く): 14296322

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 9857, 19714, 108427, 216854, 995557, 1991114, 10951127, 21902254]

約数ペア:

[(1, 21902254), (2, 10951127), (11, 1991114), (22, 995557), (101, 216854), (202, 108427), (1111, 19714), (2222, 9857)]