20937136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{353}}^1$

素因数の和:709

約数の個数: 40

約数和(自身を含む): 44510544

約数和(自身を除く): 23573408

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 337, 353, 674, 706, 1348, 1412, 2696, 2824, 3707, 3883, 5392, 5648, 7414, 7766, 14828, 15532, 29656, 31064, 59312, 62128, 118961, 237922, 475844, 951688, 1308571, 1903376, 2617142, 5234284, 10468568, 20937136]

約数ペア:

[(1, 20937136), (2, 10468568), (4, 5234284), (8, 2617142), (11, 1903376), (16, 1308571), (22, 951688), (44, 475844), (88, 237922), (176, 118961), (337, 62128), (353, 59312), (674, 31064), (706, 29656), (1348, 15532), (1412, 14828), (2696, 7766), (2824, 7414), (3707, 5648), (3883, 5392)]