2663984

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{997}}^1$

素因数の和:1172

約数の個数: 20

約数和(自身を含む): 5197584

約数和(自身を除く): 2533600

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 997, 1336, 1994, 2672, 3988, 7976, 15952, 166499, 332998, 665996, 1331992, 2663984]

約数ペア:

[(1, 2663984), (2, 1331992), (4, 665996), (8, 332998), (16, 166499), (167, 15952), (334, 7976), (668, 3988), (997, 2672), (1336, 1994)]