20442178

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1\times {\mathrm{401}}^1$

素因数の和:833

約数の個数: 16

約数和(自身を含む): 31259520

約数和(自身を除く): 10817342

約数列:

[1, 2, 71, 142, 359, 401, 718, 802, 25489, 28471, 50978, 56942, 143959, 287918, 10221089, 20442178]

約数ペア:

[(1, 20442178), (2, 10221089), (71, 287918), (142, 143959), (359, 56942), (401, 50978), (718, 28471), (802, 25489)]