2181140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8389}}^1$

素因数の和:8411

約数の個数: 24

約数和(自身を含む): 4933320

約数和(自身を除く): 2752180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 8389, 16778, 33556, 41945, 83890, 109057, 167780, 218114, 436228, 545285, 1090570, 2181140]

約数ペア:

[(1, 2181140), (2, 1090570), (4, 545285), (5, 436228), (10, 218114), (13, 167780), (20, 109057), (26, 83890), (52, 41945), (65, 33556), (130, 16778), (260, 8389)]