20658561

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89431}}^1$

素因数の和:89452

約数の個数: 16

約数和(自身を含む): 34341888

約数和(自身を除く): 13683327

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 89431, 268293, 626017, 983741, 1878051, 2951223, 6886187, 20658561]

約数ペア:

[(1, 20658561), (3, 6886187), (7, 2951223), (11, 1878051), (21, 983741), (33, 626017), (77, 268293), (231, 89431)]