21035704

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{18917}}^1$

素因数の和:19062

約数の個数: 16

約数和(自身を含む): 39727800

約数和(自身を除く): 18692096

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 18917, 37834, 75668, 151336, 2629463, 5258926, 10517852, 21035704]

約数ペア:

[(1, 21035704), (2, 10517852), (4, 5258926), (8, 2629463), (139, 151336), (278, 75668), (556, 37834), (1112, 18917)]