261335178

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{85909}}^1$

素因数の和:85943

約数の個数: 36

約数和(自身を含む): 613139670

約数和(自身を除く): 351804492

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 1014, 1521, 3042, 85909, 171818, 257727, 515454, 773181, 1116817, 1546362, 2233634, 3350451, 6700902, 10051353, 14518621, 20102706, 29037242, 43555863, 87111726, 130667589, 261335178]

約数ペア:

[(1, 261335178), (2, 130667589), (3, 87111726), (6, 43555863), (9, 29037242), (13, 20102706), (18, 14518621), (26, 10051353), (39, 6700902), (78, 3350451), (117, 2233634), (169, 1546362), (234, 1116817), (338, 773181), (507, 515454), (1014, 257727), (1521, 171818), (3042, 85909)]