16978895

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:502

約数の個数: 16

約数和(自身を含む): 20829312

約数和(自身を除く): 3850417

約数列:

[1, 5, 83, 163, 251, 415, 815, 1255, 13529, 20833, 40913, 67645, 104165, 204565, 3395779, 16978895]

約数ペア:

[(1, 16978895), (5, 3395779), (83, 204565), (163, 104165), (251, 67645), (415, 40913), (815, 20833), (1255, 13529)]