1998992

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{1237}}^1$

素因数の和:1346

約数の個数: 20

約数和(自身を含む): 3914556

約数和(自身を除く): 1915564

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1237, 1616, 2474, 4948, 9896, 19792, 124937, 249874, 499748, 999496, 1998992]

約数ペア:

[(1, 1998992), (2, 999496), (4, 499748), (8, 249874), (16, 124937), (101, 19792), (202, 9896), (404, 4948), (808, 2474), (1237, 1616)]