18161709

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1249}}^1$

素因数の和:1420

約数の個数: 16

約数和(自身を含む): 25080000

約数和(自身を除く): 6918291

約数列:

[1, 3, 37, 111, 131, 393, 1249, 3747, 4847, 14541, 46213, 138639, 163619, 490857, 6053903, 18161709]

約数ペア:

[(1, 18161709), (3, 6053903), (37, 490857), (111, 163619), (131, 138639), (393, 46213), (1249, 14541), (3747, 4847)]