21400557

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{6599}}^1$

素因数の和:6672

約数の個数: 16

約数和(自身を含む): 30412800

約数和(自身を除く): 9012243

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 6599, 19797, 151777, 310153, 455331, 930459, 7133519, 21400557]

約数ペア:

[(1, 21400557), (3, 7133519), (23, 930459), (47, 455331), (69, 310153), (141, 151777), (1081, 19797), (3243, 6599)]