19910956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5393}}^1$

素因数の和:5481

約数の個数: 24

約数和(自身を含む): 38060064

約数和(自身を除く): 18149108

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5393, 10786, 21572, 70109, 140218, 280436, 382903, 765806, 1531612, 4977739, 9955478, 19910956]

約数ペア:

[(1, 19910956), (2, 9955478), (4, 4977739), (13, 1531612), (26, 765806), (52, 382903), (71, 280436), (142, 140218), (284, 70109), (923, 21572), (1846, 10786), (3692, 5393)]