20389378

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{419}}^1\times {\mathrm{839}}^1$

素因数の和:1289

約数の個数: 16

約数和(自身を含む): 31752000

約数和(自身を除く): 11362622

約数列:

[1, 2, 29, 58, 419, 838, 839, 1678, 12151, 24302, 24331, 48662, 351541, 703082, 10194689, 20389378]

約数ペア:

[(1, 20389378), (2, 10194689), (29, 703082), (58, 351541), (419, 48662), (838, 24331), (839, 24302), (1678, 12151)]