20408325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{38873}}^1$

素因数の和:38893

約数の個数: 24

約数和(自身を含む): 38563008

約数和(自身を除く): 18154683

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 38873, 116619, 194365, 272111, 583095, 816333, 971825, 1360555, 2915475, 4081665, 6802775, 20408325]

約数ペア:

[(1, 20408325), (3, 6802775), (5, 4081665), (7, 2915475), (15, 1360555), (21, 971825), (25, 816333), (35, 583095), (75, 272111), (105, 194365), (175, 116619), (525, 38873)]