28790097

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1409}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 45007200

約数和(自身を除く): 16217103

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 1409, 2919, 4227, 6811, 9863, 20433, 29589, 69041, 195851, 207123, 587553, 1370957, 4112871, 9596699, 28790097]

約数ペア:

[(1, 28790097), (3, 9596699), (7, 4112871), (21, 1370957), (49, 587553), (139, 207123), (147, 195851), (417, 69041), (973, 29589), (1409, 20433), (2919, 9863), (4227, 6811)]