28111284

素因数分解:

$2^2\times 3^2\times {\mathrm{780869}}^1$

素因数の和:780879

約数の個数: 18

約数和(自身を含む): 71059170

約数和(自身を除く): 42947886

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 780869, 1561738, 2342607, 3123476, 4685214, 7027821, 9370428, 14055642, 28111284]

約数ペア:

[(1, 28111284), (2, 14055642), (3, 9370428), (4, 7027821), (6, 4685214), (9, 3123476), (12, 2342607), (18, 1561738), (36, 780869)]