19963257

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{347}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 27082752

約数和(自身を除く): 7119495

約数列:

[1, 3, 127, 151, 347, 381, 453, 1041, 19177, 44069, 52397, 57531, 132207, 157191, 6654419, 19963257]

約数ペア:

[(1, 19963257), (3, 6654419), (127, 157191), (151, 132207), (347, 57531), (381, 52397), (453, 44069), (1041, 19177)]