28136269

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 33022080

約数和(自身を除く): 4885811

約数列:

[1, 7, 53, 181, 371, 419, 1267, 2933, 9593, 22207, 67151, 75839, 155449, 530873, 4019467, 28136269]

約数ペア:

[(1, 28136269), (7, 4019467), (53, 530873), (181, 155449), (371, 75839), (419, 67151), (1267, 22207), (2933, 9593)]