28011851

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:514

約数の個数: 16

約数和(自身を含む): 32659200

約数和(自身を除く): 4647349

約数列:

[1, 7, 107, 149, 251, 749, 1043, 1757, 15943, 26857, 37399, 111601, 187999, 261793, 4001693, 28011851]

約数ペア:

[(1, 28011851), (7, 4001693), (107, 261793), (149, 187999), (251, 111601), (749, 37399), (1043, 26857), (1757, 15943)]