28457779

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 35458560

約数和(自身を除く): 7000781

約数列:

[1, 7, 17, 49, 119, 127, 269, 833, 889, 1883, 2159, 4573, 6223, 13181, 15113, 32011, 34163, 105791, 224077, 239141, 580771, 1673987, 4065397, 28457779]

約数ペア:

[(1, 28457779), (7, 4065397), (17, 1673987), (49, 580771), (119, 239141), (127, 224077), (269, 105791), (833, 34163), (889, 32011), (1883, 15113), (2159, 13181), (4573, 6223)]