20896257

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6917}}^1$

素因数の和:6992

約数の個数: 16

約数和(自身を含む): 29885760

約数和(自身を除く): 8989503

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 6917, 20751, 131423, 366601, 394269, 1099803, 6965419, 20896257]

約数ペア:

[(1, 20896257), (3, 6965419), (19, 1099803), (53, 394269), (57, 366601), (159, 131423), (1007, 20751), (3021, 6917)]