19976929

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{563}}^1$

素因数の和:744

約数の個数: 16

約数和(自身を含む): 23660928

約数和(自身を除く): 3683999

約数列:

[1, 7, 37, 137, 259, 563, 959, 3941, 5069, 20831, 35483, 77131, 145817, 539917, 2853847, 19976929]

約数ペア:

[(1, 19976929), (7, 2853847), (37, 539917), (137, 145817), (259, 77131), (563, 35483), (959, 20831), (3941, 5069)]