21338816

素因数分解:

$2^6\times {\mathrm{333419}}^1$

素因数の和:333431

約数の個数: 14

約数和(自身を含む): 42344340

約数和(自身を除く): 21005524

約数列:

[1, 2, 4, 8, 16, 32, 64, 333419, 666838, 1333676, 2667352, 5334704, 10669408, 21338816]

約数ペア:

[(1, 21338816), (2, 10669408), (4, 5334704), (8, 2667352), (16, 1333676), (32, 666838), (64, 333419)]