21152816

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{3923}}^1$

素因数の和:4268

約数の個数: 20

約数和(自身を含む): 41115672

約数和(自身を除く): 19962856

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 2696, 3923, 5392, 7846, 15692, 31384, 62768, 1322051, 2644102, 5288204, 10576408, 21152816]

約数ペア:

[(1, 21152816), (2, 10576408), (4, 5288204), (8, 2644102), (16, 1322051), (337, 62768), (674, 31384), (1348, 15692), (2696, 7846), (3923, 5392)]