256342851

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:608

約数の個数: 36

約数和(自身を含む): 393585192

約数和(自身を除く): 137242341

約数列:

[1, 3, 9, 19, 57, 171, 257, 307, 361, 771, 921, 1083, 2313, 2763, 3249, 4883, 5833, 14649, 17499, 43947, 52497, 78899, 92777, 110827, 236697, 278331, 332481, 710091, 834993, 997443, 1499081, 4497243, 13491729, 28482539, 85447617, 256342851]

約数ペア:

[(1, 256342851), (3, 85447617), (9, 28482539), (19, 13491729), (57, 4497243), (171, 1499081), (257, 997443), (307, 834993), (361, 710091), (771, 332481), (921, 278331), (1083, 236697), (2313, 110827), (2763, 92777), (3249, 78899), (4883, 52497), (5833, 43947), (14649, 17499)]