18706156

素因数分解:

$2^2\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1039}}^1$

素因数の和:1693

約数の個数: 24

約数和(自身を含む): 37506560

約数和(自身を除く): 18800404

約数列:

[1, 2, 4, 7, 14, 28, 643, 1039, 1286, 2078, 2572, 4156, 4501, 7273, 9002, 14546, 18004, 29092, 668077, 1336154, 2672308, 4676539, 9353078, 18706156]

約数ペア:

[(1, 18706156), (2, 9353078), (4, 4676539), (7, 2672308), (14, 1336154), (28, 668077), (643, 29092), (1039, 18004), (1286, 14546), (2078, 9002), (2572, 7273), (4156, 4501)]