201021855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{788321}}^1$

素因数の和:788346

約数の個数: 16

約数和(自身を含む): 340555104

約数和(自身を除く): 139533249

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 788321, 2364963, 3941605, 11824815, 13401457, 40204371, 67007285, 201021855]

約数ペア:

[(1, 201021855), (3, 67007285), (5, 40204371), (15, 13401457), (17, 11824815), (51, 3941605), (85, 2364963), (255, 788321)]