19979944

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131447}}^1$

素因数の和:131472

約数の個数: 16

約数和(自身を含む): 39434400

約数和(自身を除く): 19454456

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131447, 262894, 525788, 1051576, 2497493, 4994986, 9989972, 19979944]

約数ペア:

[(1, 19979944), (2, 9989972), (4, 4994986), (8, 2497493), (19, 1051576), (38, 525788), (76, 262894), (152, 131447)]