18819664

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{22193}}^1$

素因数の和:22254

約数の個数: 20

約数和(自身を含む): 37152756

約数和(自身を除く): 18333092

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 22193, 44386, 88772, 177544, 355088, 1176229, 2352458, 4704916, 9409832, 18819664]

約数ペア:

[(1, 18819664), (2, 9409832), (4, 4704916), (8, 2352458), (16, 1176229), (53, 355088), (106, 177544), (212, 88772), (424, 44386), (848, 22193)]