21880709

素因数分解:

${\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:280

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 1343611

約数列:

[1, 47, 71, 79, 83, 3337, 3713, 3901, 5609, 5893, 6557, 263623, 276971, 308179, 465547, 21880709]

約数ペア:

[(1, 21880709), (47, 465547), (71, 308179), (79, 276971), (83, 263623), (3337, 6557), (3713, 5893), (3901, 5609)]