19999356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128201}}^1$

素因数の和:128221

約数の個数: 24

約数和(自身を含む): 50255184

約数和(自身を除く): 30255828

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128201, 256402, 384603, 512804, 769206, 1538412, 1666613, 3333226, 4999839, 6666452, 9999678, 19999356]

約数ペア:

[(1, 19999356), (2, 9999678), (3, 6666452), (4, 4999839), (6, 3333226), (12, 1666613), (13, 1538412), (26, 769206), (39, 512804), (52, 384603), (78, 256402), (156, 128201)]