18908883

素因数分解:

$3^4\times 7^1\times {\mathrm{33349}}^1$

素因数の和:33368

約数の個数: 20

約数和(自身を含む): 32282800

約数和(自身を除く): 13373917

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 33349, 100047, 233443, 300141, 700329, 900423, 2100987, 2701269, 6302961, 18908883]

約数ペア:

[(1, 18908883), (3, 6302961), (7, 2701269), (9, 2100987), (21, 900423), (27, 700329), (63, 300141), (81, 233443), (189, 100047), (567, 33349)]