221988278

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{63389}}^1$

素因数の和:63511

約数の個数: 16

約数和(自身を含む): 355998240

約数和(自身を除く): 134009962

約数列:

[1, 2, 17, 34, 103, 206, 1751, 3502, 63389, 126778, 1077613, 2155226, 6529067, 13058134, 110994139, 221988278]

約数ペア:

[(1, 221988278), (2, 110994139), (17, 13058134), (34, 6529067), (103, 2155226), (206, 1077613), (1751, 126778), (3502, 63389)]