19868815

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{509}}^1$

素因数の和:762

約数の個数: 16

約数和(自身を含む): 24651360

約数和(自身を除く): 4782545

約数列:

[1, 5, 37, 185, 211, 509, 1055, 2545, 7807, 18833, 39035, 94165, 107399, 536995, 3973763, 19868815]

約数ペア:

[(1, 19868815), (5, 3973763), (37, 536995), (185, 107399), (211, 94165), (509, 39035), (1055, 18833), (2545, 7807)]