19909293

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{2161}}^1$

素因数の和:2284

約数の個数: 16

約数和(自身を含む): 27604416

約数和(自身を除く): 7695123

約数列:

[1, 3, 37, 83, 111, 249, 2161, 3071, 6483, 9213, 79957, 179363, 239871, 538089, 6636431, 19909293]

約数ペア:

[(1, 19909293), (3, 6636431), (37, 538089), (83, 239871), (111, 179363), (249, 79957), (2161, 9213), (3071, 6483)]