18719216

素因数分解:

$2^4\times {\mathrm{523}}^1\times {\mathrm{2237}}^1$

素因数の和:2768

約数の個数: 20

約数和(自身を含む): 36354072

約数和(自身を除く): 17634856

約数列:

[1, 2, 4, 8, 16, 523, 1046, 2092, 2237, 4184, 4474, 8368, 8948, 17896, 35792, 1169951, 2339902, 4679804, 9359608, 18719216]

約数ペア:

[(1, 18719216), (2, 9359608), (4, 4679804), (8, 2339902), (16, 1169951), (523, 35792), (1046, 17896), (2092, 8948), (2237, 8368), (4184, 4474)]