19911243

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{3613}}^1$

素因数の和:3794

約数の個数: 16

約数和(自身を含む): 29143296

約数和(自身を除く): 9232053

約数列:

[1, 3, 11, 33, 167, 501, 1837, 3613, 5511, 10839, 39743, 119229, 603371, 1810113, 6637081, 19911243]

約数ペア:

[(1, 19911243), (3, 6637081), (11, 1810113), (33, 603371), (167, 119229), (501, 39743), (1837, 10839), (3613, 5511)]