21749702

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{1987}}^1$

素因数の和:2423

約数の個数: 16

約数和(自身を含む): 35235312

約数和(自身を除く): 13485610

約数列:

[1, 2, 13, 26, 421, 842, 1987, 3974, 5473, 10946, 25831, 51662, 836527, 1673054, 10874851, 21749702]

約数ペア:

[(1, 21749702), (2, 10874851), (13, 1673054), (26, 836527), (421, 51662), (842, 25831), (1987, 10946), (3974, 5473)]