20381794

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{829}}^1$

素因数の和:1497

約数の個数: 16

約数和(自身を含む): 32270400

約数和(自身を除く): 11888606

約数列:

[1, 2, 19, 38, 647, 829, 1294, 1658, 12293, 15751, 24586, 31502, 536363, 1072726, 10190897, 20381794]

約数ペア:

[(1, 20381794), (2, 10190897), (19, 1072726), (38, 536363), (647, 31502), (829, 24586), (1294, 15751), (1658, 12293)]