18868445

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:592

約数の個数: 16

約数和(自身を含む): 23166000

約数和(自身を除く): 4297555

約数列:

[1, 5, 89, 109, 389, 445, 545, 1945, 9701, 34621, 42401, 48505, 173105, 212005, 3773689, 18868445]

約数ペア:

[(1, 18868445), (5, 3773689), (89, 212005), (109, 173105), (389, 48505), (445, 42401), (545, 34621), (1945, 9701)]