20189701844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{388263497}}^1$

素因数の和:388263514

約数の個数: 12

約数和(自身を含む): 38049822804

約数和(自身を除く): 17860120960

約数列:

[1, 2, 4, 13, 26, 52, 388263497, 776526994, 1553053988, 5047425461, 10094850922, 20189701844]

約数ペア:

[(1, 20189701844), (2, 10094850922), (4, 5047425461), (13, 1553053988), (26, 776526994), (52, 388263497)]