21577894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{11689}}^1$

素因数の和:11775

約数の個数: 16

約数和(自身を含む): 35350560

約数和(自身を除く): 13772666

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 11689, 23378, 151957, 303914, 829919, 1659838, 10788947, 21577894]

約数ペア:

[(1, 21577894), (2, 10788947), (13, 1659838), (26, 829919), (71, 303914), (142, 151957), (923, 23378), (1846, 11689)]