81261908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223247}}^1$

素因数の和:223271

約数の個数: 24

約数和(自身を含む): 175026432

約数和(自身を除く): 93764524

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 223247, 446494, 892988, 1562729, 2902211, 3125458, 5804422, 6250916, 11608844, 20315477, 40630954, 81261908]

約数ペア:

[(1, 81261908), (2, 40630954), (4, 20315477), (7, 11608844), (13, 6250916), (14, 5804422), (26, 3125458), (28, 2902211), (52, 1562729), (91, 892988), (182, 446494), (364, 223247)]