28021763

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21407}}^1$

素因数の和:21442

約数の個数: 16

約数和(自身を含む): 36993024

約数和(自身を除く): 8971261

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 21407, 149849, 235477, 363919, 1648339, 2547433, 4003109, 28021763]

約数ペア:

[(1, 28021763), (7, 4003109), (11, 2547433), (17, 1648339), (77, 363919), (119, 235477), (187, 149849), (1309, 21407)]