428556891

素因数分解:

$3^1\times 7^4\times {\mathrm{59497}}^1$

素因数の和:59528

約数の個数: 20

約数和(自身を含む): 666615592

約数和(自身を除く): 238058701

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 59497, 178491, 416479, 1249437, 2915353, 8746059, 20407471, 61222413, 142852297, 428556891]

約数ペア:

[(1, 428556891), (3, 142852297), (7, 61222413), (21, 20407471), (49, 8746059), (147, 2915353), (343, 1249437), (1029, 416479), (2401, 178491), (7203, 59497)]