2642781

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:372

約数の個数: 16

約数和(自身を含む): 3680768

約数和(自身を除く): 1037987

約数列:

[1, 3, 31, 93, 157, 181, 471, 543, 4867, 5611, 14601, 16833, 28417, 85251, 880927, 2642781]

約数ペア:

[(1, 2642781), (3, 880927), (31, 85251), (93, 28417), (157, 16833), (181, 14601), (471, 5611), (543, 4867)]