18945685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{5647}}^1$

素因数の和:5724

約数の個数: 16

約数和(自身を含む): 25212672

約数和(自身を除く): 6266987

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 5647, 28235, 62117, 310585, 344467, 1722335, 3789137, 18945685]

約数ペア:

[(1, 18945685), (5, 3789137), (11, 1722335), (55, 344467), (61, 310585), (305, 62117), (671, 28235), (3355, 5647)]