21630885

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84827}}^1$

素因数の和:84852

約数の個数: 16

約数和(自身を含む): 36645696

約数和(自身を除く): 15014811

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 84827, 254481, 424135, 1272405, 1442059, 4326177, 7210295, 21630885]

約数ペア:

[(1, 21630885), (3, 7210295), (5, 4326177), (15, 1442059), (17, 1272405), (51, 424135), (85, 254481), (255, 84827)]