19850991

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6571}}^1$

素因数の和:6646

約数の個数: 16

約数和(自身を含む): 28391040

約数和(自身を除く): 8540049

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 6571, 19713, 124849, 348263, 374547, 1044789, 6616997, 19850991]

約数ペア:

[(1, 19850991), (3, 6616997), (19, 1044789), (53, 374547), (57, 348263), (159, 124849), (1007, 19713), (3021, 6571)]