28640738

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{55291}}^1$

素因数の和:55337

約数の個数: 16

約数和(自身を含む): 50426304

約数和(自身を除く): 21785566

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 55291, 110582, 387037, 774074, 2045767, 4091534, 14320369, 28640738]

約数ペア:

[(1, 28640738), (2, 14320369), (7, 4091534), (14, 2045767), (37, 774074), (74, 387037), (259, 110582), (518, 55291)]