19839814

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4507}}^1$

素因数の和:4611

約数の個数: 16

約数和(自身を含む): 31159296

約数和(自身を除く): 11319482

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4507, 9014, 139717, 279434, 319997, 639994, 9919907, 19839814]

約数ペア:

[(1, 19839814), (2, 9919907), (31, 639994), (62, 319997), (71, 279434), (142, 139717), (2201, 9014), (4402, 4507)]