18871299

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{4957}}^1$

素因数の和:5016

約数の個数: 20

約数和(自身を含む): 28796064

約数和(自身を除く): 9924765

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 4957, 14871, 44613, 133839, 232979, 401517, 698937, 2096811, 6290433, 18871299]

約数ペア:

[(1, 18871299), (3, 6290433), (9, 2096811), (27, 698937), (47, 401517), (81, 232979), (141, 133839), (423, 44613), (1269, 14871), (3807, 4957)]