20153287

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{1153}}^1$

素因数の和:1398

約数の個数: 16

約数和(自身を含む): 25258752

約数和(自身を除く): 5105465

約数列:

[1, 7, 11, 77, 227, 1153, 1589, 2497, 8071, 12683, 17479, 88781, 261731, 1832117, 2879041, 20153287]

約数ペア:

[(1, 20153287), (7, 2879041), (11, 1832117), (77, 261731), (227, 88781), (1153, 17479), (1589, 12683), (2497, 8071)]