1640669439

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{253307}}^1$

素因数の和:253454

約数の個数: 16

約数和(自身を含む): 2334486528

約数和(自身を除く): 693817089

約数列:

[1, 3, 17, 51, 127, 381, 2159, 6477, 253307, 759921, 4306219, 12918657, 32169989, 96509967, 546889813, 1640669439]

約数ペア:

[(1, 1640669439), (3, 546889813), (17, 96509967), (51, 32169989), (127, 12918657), (381, 4306219), (2159, 759921), (6477, 253307)]