20819754

素因数分解:

$2^1\times 3^5\times {\mathrm{42839}}^1$

素因数の和:42856

約数の個数: 24

約数和(自身を含む): 46781280

約数和(自身を除く): 25961526

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 42839, 85678, 128517, 257034, 385551, 771102, 1156653, 2313306, 3469959, 6939918, 10409877, 20819754]

約数ペア:

[(1, 20819754), (2, 10409877), (3, 6939918), (6, 3469959), (9, 2313306), (18, 1156653), (27, 771102), (54, 385551), (81, 257034), (162, 128517), (243, 85678), (486, 42839)]