21497242

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{4951}}^1$

素因数の和:5133

約数の個数: 16

約数和(自身を含む): 34941312

約数和(自身を除く): 13444070

約数列:

[1, 2, 13, 26, 167, 334, 2171, 4342, 4951, 9902, 64363, 128726, 826817, 1653634, 10748621, 21497242]

約数ペア:

[(1, 21497242), (2, 10748621), (13, 1653634), (26, 826817), (167, 128726), (334, 64363), (2171, 9902), (4342, 4951)]