81221748

素因数分解:

$2^2\times 3^1\times {\mathrm{401}}^1\times {\mathrm{16879}}^1$

素因数の和:17287

約数の個数: 24

約数和(自身を含む): 190001280

約数和(自身を除く): 108779532

約数列:

[1, 2, 3, 4, 6, 12, 401, 802, 1203, 1604, 2406, 4812, 16879, 33758, 50637, 67516, 101274, 202548, 6768479, 13536958, 20305437, 27073916, 40610874, 81221748]

約数ペア:

[(1, 81221748), (2, 40610874), (3, 27073916), (4, 20305437), (6, 13536958), (12, 6768479), (401, 202548), (802, 101274), (1203, 67516), (1604, 50637), (2406, 33758), (4812, 16879)]