991904

素因数分解:

$2^5\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:372

約数の個数: 24

約数和(自身を含む): 1975680

約数和(自身を除く): 983776

約数列:

[1, 2, 4, 8, 16, 32, 139, 223, 278, 446, 556, 892, 1112, 1784, 2224, 3568, 4448, 7136, 30997, 61994, 123988, 247976, 495952, 991904]

約数ペア:

[(1, 991904), (2, 495952), (4, 247976), (8, 123988), (16, 61994), (32, 30997), (139, 7136), (223, 4448), (278, 3568), (446, 2224), (556, 1784), (892, 1112)]