20857938

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{613}}^1$

素因数の和:778

約数の個数: 32

約数和(自身を含む): 42970176

約数和(自身を除く): 22112238

約数列:

[1, 2, 3, 6, 53, 106, 107, 159, 214, 318, 321, 613, 642, 1226, 1839, 3678, 5671, 11342, 17013, 32489, 34026, 64978, 65591, 97467, 131182, 194934, 196773, 393546, 3476323, 6952646, 10428969, 20857938]

約数ペア:

[(1, 20857938), (2, 10428969), (3, 6952646), (6, 3476323), (53, 393546), (106, 196773), (107, 194934), (159, 131182), (214, 97467), (318, 65591), (321, 64978), (613, 34026), (642, 32489), (1226, 17013), (1839, 11342), (3678, 5671)]