19869818

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:733

約数の個数: 16

約数和(自身を含む): 30270240

約数和(自身を除く): 10400422

約数列:

[1, 2, 131, 181, 262, 362, 419, 838, 23711, 47422, 54889, 75839, 109778, 151678, 9934909, 19869818]

約数ペア:

[(1, 19869818), (2, 9934909), (131, 151678), (181, 109778), (262, 75839), (362, 54889), (419, 47422), (838, 23711)]