20877315

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{113}}^2$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 34011120

約数和(自身を除く): 13133805

約数列:

[1, 3, 5, 15, 109, 113, 327, 339, 545, 565, 1635, 1695, 12317, 12769, 36951, 38307, 61585, 63845, 184755, 191535, 1391821, 4175463, 6959105, 20877315]

約数ペア:

[(1, 20877315), (3, 6959105), (5, 4175463), (15, 1391821), (109, 191535), (113, 184755), (327, 63845), (339, 61585), (545, 38307), (565, 36951), (1635, 12769), (1695, 12317)]