18964690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:702

約数の個数: 32

約数和(自身を含む): 36364464

約数和(自身を除く): 17399774

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 281, 397, 562, 794, 1405, 1985, 2810, 3970, 4777, 6749, 9554, 13498, 23885, 33745, 47770, 67490, 111557, 223114, 557785, 1115570, 1896469, 3792938, 9482345, 18964690]

約数ペア:

[(1, 18964690), (2, 9482345), (5, 3792938), (10, 1896469), (17, 1115570), (34, 557785), (85, 223114), (170, 111557), (281, 67490), (397, 47770), (562, 33745), (794, 23885), (1405, 13498), (1985, 9554), (2810, 6749), (3970, 4777)]