20506419

素因数分解:

$3^3\times {\mathrm{179}}^1\times {\mathrm{4243}}^1$

素因数の和:4431

約数の個数: 16

約数和(自身を含む): 30556800

約数和(自身を除く): 10050381

約数列:

[1, 3, 9, 27, 179, 537, 1611, 4243, 4833, 12729, 38187, 114561, 759497, 2278491, 6835473, 20506419]

約数ペア:

[(1, 20506419), (3, 6835473), (9, 2278491), (27, 759497), (179, 114561), (537, 38187), (1611, 12729), (4243, 4833)]